AREA AND NONROAD 2007 BASE YEAR INVENTORIES

REVISED FINAL REPORT

Contract No. S-2009-06-01 

January 2012 

Prepared for: 

Ronald C. Methier 

Southeastern States Air Resource Managers, Inc. 

526 Forest Parkway, Suite F 

Forest Park, GA 30297-6140 

Prepared by: 

TranSystems Corporation 

3622 Lyckan Parkway, Suite 2005 

Durham, NC 27707 
[This page intentionally left blank.]
January 2012 

 Final Report iii

CONTENTS 

Page

TABLES ........................................................................................................................................................................ iv

FIGURES ...................................................................................................................................................................... iv

I. INTRODUCTION ..................................................................................................................................................1

II. STATIONARY AREA SOURCE INVENTORY......................................................................................................3

A. AGENCY SUPPLIED INVENTORY DATA..................................................................................................3

B. DEVELOPMENT OF TRANSYSTEMS DEFAULT 2007 AREA SOURCE INVENTORY ............................5

1. 2008 Nonpoint Source NEI..............................................................................................................5

a. Adjustment of NEI Data to Reflect 2007 Activity Levels...............................................................11

b. Adjustment of NEI Data to Remove Activity Reflected in the Point Source Inventory..................11

2. Estimation of Area Source Emissions from Industrial and Commercial/‌Institutional Fuel 

 Combustion ...................................................................................................................................16

a. Total ICI Energy Consumption.....................................................................................................18

b. Stationary Source Energy Consumption......................................................................................18

c. Non-Fuel Energy Consumption....................................................................................................22

d. Emission Factors .........................................................................................................................23

e. Coal Sulfur and Ash Content .......................................................................................................25

f. County Allocation Data ................................................................................................................27

3. Estimation of Area Source Emissions from Residential Wood Combustion ..................................29

4. Estimation of Area Source Emissions from Gasoline Service Stations/Stage I .............................34

C. INVENTORY SUPPLEMENTATION/FINAL DATA MERGING .................................................................34

D. QA/QC PROCEDURES ............................................................................................................................39

III. 2007 NONROAD MOBILE SOURCE INVENTORY ................................................................................................40

A. NONROAD MODEL CATEGORIES..........................................................................................................40

B. AIRCRAFT ................................................................................................................................................42

C. COMMERCIAL MARINE VESSELS..........................................................................................................43

D. LOCOMOTIVES........................................................................................................................................47

E. QA/QC PROCEDURES ............................................................................................................................48

IV. EMISSIONS SUMMARIES.................................................................................................................................51

A. STATIONARY AREA SOURCE EMISSIONS ...........................................................................................51

B. NONROAD MOBILE SOURCE EMISSIONS ............................................................................................56

V. REFERENCES ...................................................................................................................................................61

APPENDIX A. POINT SOURCE SUBTRACTION PROCEDURE DETAILS....................................................... A-1
January 2012 

 Final Report iv

TABLES 

Table II-1. Overview of Area Source Inventory Components by State/Local Agency ...................................................4

Table II-2. 2008 NEI Area Source Categories for Which EPA Has Developed Emission Estimates.............................6

Table II-3. Methods for Updating 2008 NEI Estimates that Are Not Based on 2007 Emissions Activity .....................12

Table II-4. Throughput-Based Area Source Emission Adjustments ............................................................................16

Table II.5. ICI Fuel Combustion Area Source Classification Codes ............................................................................17

Table II-6. LPG Nonroad Mobile Source Classification Codes....................................................................................19

Table II-7. Assumptions Used to Estimate Industrial Sector Stationary Source Distillate Fuel Consumption .............22

Table II-8. Assumptions Used to Estimate Commercial/Institutional Sector Stationary Source 

Distillate Fuel Consumption .........................................................................................................................................22

Table II-9. Industrial Sector Energy Consumption from Non-Fuel Uses......................................................................23

Table II-10. Criteria Pollutant Emission Factors for ICI Combustion Area Source Categories....................................24

Table II-11. Bituminous/Subbituminous Coal Sulfur Content for 2007 ICI Combustion ..............................................26

Table II-12. Anthracite Coal Ash and Sulfur Content for 2007 ICI Combustion...........................................................26

Table II-13. Summary of Data Carried Forward/Grown From 2002 NEI .....................................................................36

Table II-14. Area Source Inventory Data Source Codes .............................................................................................39

Table III-1. Summary of 2007 NCD Tables and State Comments ..............................................................................41

Table III-2. Aircraft Source Classification Codes.........................................................................................................42

Table III-3. Summary of State Updates to Aircraft Category Emissions......................................................................43

Table III-4. Category 1 & CMV Growth Factors, by Pollutant......................................................................................44

Table III-5. Category 3 CMV Growth Factors, by State and SCC ...............................................................................45

Table III-6. Summary of State Updates to Commercial Marine Category Emissions ..................................................46

Table III-7. Summary of State Updates to Locomotive Category Emissions...............................................................49

Table III-8. Data Source Codes Used for Final 2007 Nonroad Mobile Emission Estimates........................................50

Table IV-1. Final 2007 SESARM Area Source Emissions by Major Sector ................................................................51

Table IV-2. Final 2007 Area Source Emission Estimates by State .............................................................................52

Table IV-3. Final 2007 Combustion Emission Estimates by State ..............................................................................53

Table IV-4. Final 2007 Solvent Emission Estimates by State .....................................................................................54

Table IV-5. Final 2007 Fugitive Dust Emission Estimates by State ............................................................................55

Table IV-6. Final 2007 All Other Area Source Emission Estimates by State...............................................................56

Table IV-7. Final 2007 SESARM Nonroad Source Emissions by Major Sector ..........................................................57

Table IV-8. Final 2007 NONROAD Model Emission Estimates by State ....................................................................57

Table IV-9. Final 2007 Aircraft Emission Estimates by State ......................................................................................58

Table IV-10. Final 2007 Commercial Marine Vessel Emission Estimates by State.....................................................59

Table IV-11. Final 2007 Locomotive Emission Estimates by State .............................................................................60

Table A-1. Industrial Fuel Combustion Crosswalk for Point Source Subtractions..................................................... A-3

Table A-2. Commercial/Institutional Fuel Combustion Crosswalk for Point Source Subtractions ........................... A-12

Table A-3. Construction Crosswalk for Point Source Subtractions ......................................................................... A-15

Table A-4. Publicly Owned Treatment Works Crosswalk for Point Source Subtractions ........................................ A-16

Table A-5. Solvent Utilization Crosswalk for Point Source Subtractions................................................................. A-17

Table A-6. Gasoline Distribution Crosswalk for Point Source Subtractions ............................................................ A-32

Table A-7. Mining and Quarrying Crosswalk for Point Source Subtraction............................................................. A-38

Table A-8. Agriculture Production Crosswalk for Livestock..................................................................................... A-41

FIGURES 

Figure 1. Decision Tree for Assigning Regional Average (Default) or National Urban Appliance Profile....................31

Figure 2. Decision Tree for Assigning Average (Default), Urban, or Rural Burn Profiles ............................................33
January 2012 

 v Final Report 
January 2012 

 1 Final Report 

I. INTRODUCTION 

TranSystems is supporting the Southeastern States Air Resource Managers, Inc. (SESARM) in the Southeastern 

Modeling, Analysis, and Planning (SEMAP) project that is funded by the same ten states originally involved in the 

Visibility Improvement – State and Tribal Association of the Southeast (VISTAS) project. The SEMAP project 

addresses the next phase of ozone, fine particle, and regional haze assessment obligations of the SESARM member 

states. The SEMAP project is designed to produce technical analyses to aid the participating agencies in developing 

State Implementation Plans (SIPs) required by the Clean Air Act. 

In June 2010, TranSystems developed a set of “final” 2007 area and nonroad source base year inventory emission 

estimates (Pechan, 2010). These estimates are reported by county and source classification code (SCC), and were 

developed using data from a number of sources: 

 State/Local (S/L) agency emissions data; 

 2007 year emissions data compiled from running EPA’s NONROAD model with a combination of EPA 

default and S/L agency-supplied inputs; 

 2007 area source emissions estimated by TranSystems, generally developed using the emissions 

estimation procedures used to prepare EPA’s draft 2008 National Emissions Inventory (NEI);1

 2007 industrial and commercial/institutional (ICI) fuel combustion emission estimates developed by 

TranSystems; 

 2008 commercial marine vessel and aircraft emission estimates from EPA’s draft 2008 NEI, modified by 

TranSystems to reflect 2007 activity levels; 

 2007 switchyard and Class I line-haul locomotive estimates provided by the Eastern Regional Technical 

Advisory Committee (ERTAC); and 

 2008 ERTAC Class II/III line-haul locomotive emission estimates, modified by TranSystems to reflect 2007 

activity levels. 

Because EPA had not developed draft 2008 NEI emission estimates for Agricultural Tilling, Mining and Quarrying, 

and Pesticide Application at the time that the final area/nonroad source inventory was prepared, the final area source 

inventory also incorporated guidance from S/L agencies as to whether to incorporate emission estimates carried 

forward or grown2 from EPA’s 2002 area source NEI for these source categories. For ICI fuel combustion and other 

NEI source categories for which draft emission estimates reflected total emissions activity, it was necessary for 

TranSystems to perform point source subtractions to develop estimates of the emissions from area sources. These 

point source subtractions were performed using version 1.3 of the 2007 SEMAP point source inventory.

Since the final area source inventory was prepared in June 2010, SESARM requested that TranSystems incorporate 

additional S/L agency feedback into a revised final area source inventory. This feedback included direction to use 

updated agency emissions data, and to revise/remove other emission estimates. In the latter case, feedback 

included direction to replace S/L agency estimates with TranSystems defaults, and to remove emission estimates for 

specific fire source categories: Open Burning of Land Clearing Debris; Agricultural Field Burning; Forest Wildfire; 

and Prescribed Burning (these source categories are covered by a separate fire inventory developed by a different 

SESARM contractor).3 For two source categories, Residential Wood Combustion and Stage I Gasoline Service 

Stations, SESARM directed TranSystems to develop new emission estimates reflecting changes to some of the 

inputs that had been used to develop the 2008 area source NEI emission estimates. In addition, SESARM directed 

 

1 2008 NEI methods rely on Eastern Regional Technical Advisory Committee (ERTAC) methods when available.

2 Based on direction from S/L agencies, some 2002 NEI emission estimates were projected to 2007 using emission activity 

growth factors from Version 5.0 of the Economic Growth Analysis System (EGAS) (EPA, 2010).

3 In the case of Open Burning of Land Clearing Debris and Agricultural Field Burning, TranSystems provided the contractor 

(AMEC) with a file containing the final area source inventory’s emission estimates.
January 2012 

 2 Final Report 

TranSystems to re-perform the point source subtractions using an updated version (1.10a) of the SEMAP 2007 point 

source inventory. 4, 5 

Changes to the final nonroad mobile source inventory were relatively modest, with the only major change relating to 

the development of updated NONROAD model emission estimates for Virginia using a new set of Reid vapor 

pressure (RVP) values provided by the State.

The following sections provide additional details on the inventory development process. The major topics that are 

discussed are: 

 How TranSystems identified source categories and/or pollutants that may have been missing from the S/L 

agency supplied data; 

 How TranSystems integrated data from the various emission data sources (i.e., S/L agencies, TranSystems 

defaults, ERTAC, and 2008 and 2002 NEI); and 

 How TranSystems quality assured the integrated emissions inventory. 

The balance of this report is organized as follows. Section II describes the development of the stationary area source 

sector inventory. The development of the nonroad mobile source sector inventory is described in Section III. 

Section IV presents the area and nonroad source emission summaries for the final 2007 base year inventory for the 

SEMAP project. Section V presents the references that were consulted in preparing the revised final inventory. 

 

4 As requested, TranSystems performed the point source subtractions for Georgia at the State-level (per Georgia’s earlier 

direction, the final inventory had performed these subtractions at the county-level).

5 It should be noted that although EPA recently developed emissions estimates for Agricultural Tilling, Mining and Quarrying, and

Pesticide Application, and also incorporated revisions to the draft NEI emission estimates for Open Burning of Household Waste 

(2610030000) and Yard Waste (2610000100 and 2610000400), and Fugitive Dust from Paved Roads (2294000000), SESARM 

elected not to incorporate these updates into the revised final area source inventory.
January 2012 

 3 Final Report 

II. STATIONARY AREA SOURCE INVENTORY 

TranSystems developed the revised final 2007 base year area source inventory for the SEMAP project from a 

combination of six sources: 

1) S/L agency supplied area source emissions data; 

2) TranSystems 2007 area source emission estimates developed using the emission estimation methods from 

the 2008 NEI with adjustments to reflect 2007 emissions activity and to subtract point source emissions; 

3) TranSystems 2007 industrial and commercial/institutional fuel combustion area source emission estimates 

specifically developed for the SESARM states; 

4) TranSystems 2007 emission estimates for gasoline service stations/stage I unloading; 

5) TranSystems 2007 emission estimates using EPA’s residential wood combustion tool with SESARMidentified modifications, and 

6) Area source emission estimates carried forward or grown from EPA’s 2002 nonpoint source NEI. 

Table II-1 summarizes how these data sources were merged to create a comprehensive stationary area source 

inventory for jurisdictions covered by the SEMAP project. The following sections provide more specifics on the 

contents of each of these data sources and how they were combined into the final 2007 area source inventory. 

A. AGENCY SUPPLIED INVENTORY DATA 

TranSystems commenced area source inventory development work by providing S/L agencies with a Technical 

Memorandum documenting the emission estimation methods and data TranSystems was using to develop the U.S. 

Environmental Protection Agency (EPA)’s 2008 nonpoint source NEI (Pechan, 2009a). The purpose of this 

memorandum was to provide agencies with information to: (1) review and comment on the methods/data, and 

(2) assist agencies in evaluating the merits of the NEI methods/data relative to any S/L area source inventory 

development efforts. State and local agencies were then provided with several months to compile and transmit area 

source emissions data to TranSystems. 

Two state agencies (North Carolina and Virginia) and two local agencies (Jefferson County, Kentucky and Davidson 

County, Tennessee) provided area source data for the draft area source inventory (two additional local agencies 

provided data for the final area source inventory – Knox County and Shelby County, Tennessee). After receiving 

these S/L agency data, TranSystems compared the source classification code (SCC) and pollutant coverage of these 

submittals against the SCCs/pollutants in the 2007 emissions data that TranSystems was developing for this project 

(hereafter referred to as the “TranSystems default inventory”). 

To assist in obtaining direction from SESARM agencies on how to merge the data from these sources, TranSystems 

first identified the SCC/pollutant combinations in the TranSystems default inventory that matched to S/L agency data. 

Next, TranSystems reviewed remaining S/L agency SCC/pollutant combinations against TranSystems defaults to 

identify whether it may be possible that these emissions were covered in the TranSystems default inventory under 

different SCCs. TranSystems then developed a list of potential indirect matches between the two data sets for 

agency review. This list was compiled in an Excel worksheet. Next, TranSystems developed a separate worksheet 

that listed SCC/pollutant combinations in the S/L supplied area source inventory that we were unable to either directly 

or indirectly match to combinations in the TranSystems default inventory. A list of SCC/pollutant combinations in the 

TranSystems default inventory that we were unable to directly or indirectly match to combinations in the S/L agency 

inventory was also prepared in a separate worksheet. Finally, TranSystems developed a worksheet that contained 

all S/L agency inventory SCC/pollutant combinations with emissions equal to “0.” The above worksheets were saved 

in a single Excel workbook for each Agency. In addition to these workbooks, TranSystems transmitted a Word 

document identifying questions on how two merge the two data sets (e.g., where S/L agency emissions are reported 

as zero, should TranSystems replace any of these with emissions from the TranSystems default inventory?). After 
4 

Table II-1. Overview of Area Source Inventory Components by State/Local Agency 

Alabama Florida Georgia 

KentuckyJefferson 

County 

KentuckyRest of State Mississippi North Carolina South Carolina 

TennesseeDavidson 

County 

TennesseeKnox County

TennesseeShelby 

County 

Agency 

Contact 

Lisa 

Cole/Tracy 

Anderson 

Kelly Stevens Byeong Kim Craig Butler Martin Luther Elliott Bickerstaff Phyllis Jones Carla Bedenbaugh John Finke Steve McDaniel Chris Boyd 

Source of 

Emissions 

Data 

Combination of Agency data

and TranSystems defaults, supplemented with categoriesfrom 2002 NEI grown using EGAS 

TranSystems defaults, supplemented with categories

from 2002 NEI (combination of EGAS and carry forward) 

TranSystems defaults, supplemented with categories from 2005 GA Consolidated Emissions Reporting Rule (CERR) submittal grown using EGAS 

Combination of

Agency data and TranSystems defaults. 

TranSystems defaults, supplemented with categoriesfrom 2002 NEI grown using EGAS 

TranSystems defaults, supplemented with categoriesfrom 2002 NEI (combination of EGAS and carry forward) 

Combination of Agency data and TranSystems defaults. 

TranSystems defaults, supplemented with categories from 2002 NEI grown using EGAS 

Combination of Agency data and TranSystemsdefaults. 

Combination of Agency data and TranSystems defaults, supplemented with categories from 2002 NEI (emissions carried forward) 

Agency data 
January 2012 

 5 Final Report 

reviewing S/L agency responses to these questions, TranSystems transmitted any follow-up questions that were 

necessary to clarify S/L agency guidance. 

B. DEVELOPMENT OF TRANSYSTEMS DEFAULT 2007 AREA SOURCE INVENTORY 

TranSystems created a default 2007 area source inventory that included all of the source categories covered by the 

2008 nonpoint source NEI as of early 2010. For all these source categories except industrial and 

commercial/institutional (ICI) fuel combustion, stage I gasoline service stations, and residential wood combustion, 

TranSystems either directly incorporated emissions data from the 2008 nonpoint source NEI (when the NEI 

represented use of 2007 emissions activity data), or recalculated the NEI emission estimates to reflect 2007 activity 

levels (when the NEI reflected 2006 or 2008 activity levels) and/or removed the emissions associated with activity 

reflected in the point source inventory. As of early 2010, the 2008 nonpoint source NEI had only developed ICI fuel 

combustion emissions activity estimates, not emission estimates. Because of their potential importance and the 

availability of methodological improvements, TranSystems utilized an emissions estimation method for ICI fuel 

combustion that incorporated a few refinements to the NEI method. For stage I gasoline service stations, we 

developed emission estimates for this project using the NEI methods in combination with inputs reviewed and 

approved by S/L agencies. For residential wood combustion (RWC), TranSystems updated the emission estimates 

by running EPA’s RWC emissions estimation tool with updates to the tool’s wood consumption and wood-burning 

appliance profile/allocation assumptions. The following section discusses how information from the 2008 nonpoint 

source NEI was used in this project. The subsequent sections provide details on the methods used to estimate 

emissions from ICI fuel combustion, stage I gasoline service stations, and residential wood combustion. 

1. 2008 Nonpoint Source NEI 

TranSystems supported EPA efforts to develop the 2008 nonpoint source NEI. Because of data availability issues, 

the 2008 NEI is comprised of data of various vintages (2006-2008). Table II-2 provides documentation of the 2008 

nonpoint source NEI, which is as follows: 

(1) Source Category – identifies the name of each general source category covered. 

(2) Source Classification Code(s) – lists the SCCs that are inventoried. 

(3) Source Classification Code Description – provides a description of each SCC. 

(4) Link to Emission Calculation Documentation – provides links to the detailed documentation of the NEI 

methods;6

(5) Link to Emission Calculation Workbook – provides a link to the draft 2008 NEI emissions or activity data; 

(6) Year of Activity Data – identifies the year represented by the emissions activity data; and 

(7) Point Source Component – signifies whether a portion of the source category’s emissions may be included 

within the point source inventory. 

When work commenced on the revised final base year inventory in late 2011, TranSystems notified SESARM of the 

availability of 2008 NEI emission estimates for the following additional area source categories: Agricultural Tilling, 

Mining and Quarrying, and Pesticide Application. SESARM directed TranSystems not to incorporate the 2008 NEI 

emission estimates for these categories. In lieu of such updates, the SEMAP emission estimates for these source 

categories reflect direction from S/L agencies as to whether to incorporate estimates based on emissions reported in 

the 2002 NEI. In such cases where these categories were identified for inclusion, agencies also provided direction 

as to whether the 2002 NEI emissions should be carried forward to represent 2007 emissions, or projected to 2007 

using growth factors from the Economic Growth Analysis Systems (EGAS).

 

6 Left clicking on the hyperlink while simultaneously pressing the control key allows one to open or save the documentation/data 

of interest. The complete list of material can be accessed at: http://projects.pechan.com/EPA/Non-Point_Emission_Estimates/. 

Note that in some cases, this documentation reflects revisions that EPA incorporated after the NEI data were compiled for this 

project: SESARM opted not to incorporate NEI revisions for Open Burning of Household Waste (2610030000) and Yard Waste 

(2610000100 and 2610000400), and Fugitive Dust from Paved Roads (2294000000).
6 

Table II-2. 2008 NEI Area Source Categories for Which EPA Has Developed Emission Estimates 

Source Category Source Classification Code(s) Source Classification Code Description Link to Emission Calculation Documentation Link to Emission Calc

Workbook 

Agriculture Production – 

Livestock 28050nnnnn Livestock Agriculture_Production_Livestock_28050 nnnnn_Documentation.zip Agriculture_Production_Liv

50nnnnn_Emission

2461021000 Cutback Asphalt Asphalt_Paving_Cutback_2461021000_ Documentation.zip Asphalt_Paving_Cutback_2

_Emissions.zip 

Asphalt Paving 

2461022000 Emulsified Asphalt Asphalt_Paving_Emulsified_2461022000 _Documentation.zip Asphalt_Paving_Emulsified

00_Emissions.zi

Aviation Gasoline 

Distribution: Stage I 2501080050 Aviation Gasoline: Stage I Aviation_Gasoline_Distribution_Stage_I_ 2501080050_Documentation.zip Aviation_Gasoline_Distribu

_I_2501080050_Emiss

Aviation Gasoline 

Distribution: Stage II 2501080100 Aviation Gasoline: Stage II Aviation_Gasoline_Distribution_Stage_II_ 2501080100_Documentation.zip Aviation_Gasoline_Distribu

_II_2501080100_Emiss

Commercial Cooking 2302002nnn 2302003nnn Commercial Cooking Commercial_Cooking_2302002nnn_Doc umentation.zip Commercial_Cooking_230

missions.zip 

2311010000 Residential Construction Residential_Construction_2311010000_ Documentation.zip Residential_Construction_2

_Emissions.zip 

2311020000 Non-Residential Construction

NonResidential_Construction_2311020000_

Documentation.zip

NonResidential_Construction_2

_Emissions.zip

Construction Dust 

2311030000 Road Construction Road_Construction_2311030000_Docum entation.zip Road_Construction_23110

ssions.zip 

Fertilizer Application 28017000nn Fertilizer Application Fertilizer_Application_28017000nn_Docu mentation.zip Fertilizer_Application_280

missions.zip 

25010110nn 25010120nn Portable Fuel Containers Portable_Fuel_Containers_25010110nn_ 25010120nn_Documentation.zip Portable_Fuel_Containers_

n_25010120nn_Emiss

2501050120 Gasoline Distribution Stage I; Bulk Terminals Gasoline_Distribution_Stage_I_Documen tation.zip Gasoline_Distribution_Stag

erminals_2501050120_Em

2501055120 Gasoline Distribution Stage I; Bulk Plants Gasoline_Distribution_Stage_I_Documen tation.zip Gasoline_Distribution_Stag

lants_2501055120_Emis

Gasoline Distribution 

(SEMAP emissions were 

developed for Stage I 

Gasoline Service Station 

Unloading using NEI 

methods with S/L agency 

approved inputs) 

250106005n 

Gasoline Distribution Stage I; 

Gasoline Service Station 

Unloading 

Gasoline_Distribution_Stage_I_Documen

tation.zip

Gasoline_Distribution_Stag

e_Station_Unloading_250

missions.zip
7 

Source Category Source Classification Code(s) Source Classification Code Description Link to Emission Calculation Documentation Link to Emission Calc

Workbook 

2501060100 Gasoline Distribution Stage II; Gasoline Service Stations Gasoline_Distribution_Stage_II_Docume ntation.zip Gasoline_Distribution_Stag

ne_Service_Stations_2501

missions.zip 

2501060201 

Gasoline Distribution Stage I; 

Underground storage tank, 

breathing and emptying 

Gasoline_Distribution_Stage_I_Documen

tation.zip

Gasoline_Distribution_Stag

reathing_and_Emptying_25

CAP_Emissions.z

2505030120 Gasoline Distribution Stage I; Tank Trucks in Transit Gasoline_Distribution_Stage_I_Documen tation.zip Gasoline_Distribution_Stag

Trucks_in_Transit_250503

sions.zip 

2505040120 Gasoline Distribution Stage I; Pipelines Gasoline_Distribution_Stage_I_Documen tation.zip Gasoline_Distribution_Stag

es_2505040120_CAP_Em

2610000100 Open Burning - Yard Waste - Leaves Open_Burning_Yard_Waste_Leaf_26100 00100_and_Brush_2610000400_Docum entation.zip Open_Burning_Yard_Wast

000100_Emissions

2610000400 Open Burning - Yard Waste - Brush Open_Burning_Yard_Waste_Leaf_26100 00100_and_Brush_2610000400_Docum entation.zip Open_Burning_Yard_Was

61000400_Emission

2610000500 Open Burning - Land Clearing Debris Open_Burning_Land_Clearing_Debris_2 610000500_Documentation.zip Open_Burning_Land_Clea

_2610000500_Emissio

Open Burning 

(NEI emissions for Open 

Burning of Land Clearing 

Debris were transmitted to 

AMEC for incorporation into 

SEMAP’s fire inventory) 

2610030000 Open Burning - Household Waste Open_Burning_MSW_2610030000_Docu mentation.zip Open_Burning_MSW_261

missions.zip 

2294000000 Paved Road Dust Paved_Roads_2294000000_Documentat ion.zip Paved_Roads_229400000

s.zip 

Paved and Unpaved Roads 

2296000000 Unpaved Road Dust Unpaved_Roads_2296000000_Documen tation.zip Unpaved_Roads_2296000

ons.zip 

Publicly Owned Treatment 

Works (POTW) 2630020000 Publicly Owned Treatment Works (POTW) Publicly_Owned_Treatment_Works_2630 020000_Documentation.zip Publicly_Owned_Treatmen

30020000_Emission

2104001000 Residential Anthracite Coal Residential_Coal_2104001000_2104002 000_Documentation.zip Residential_Coal_2104001

02000_Emissions

2104002000 Residential Bituminous Coal Residential_Coal_2104001000_2104002 000_Documentation.zip Residential_Coal_2104001

02000_Emissions

Residential Heating 

(SEMAP Residential Wood 

Combustion/Wax Firelog 

emissions were calculated 

using NEI’s RWC Tool with 

SESARM-revised inputs) 2104004000 Residential Distillate Oil Residential_Distillate_Fuel_2104004000_ Documentation.zip Residential_Distillate_Fuel

00_Emissions.zi
8 

Source Category Source Classification Code(s) Source Classification Code Description Link to Emission Calculation Documentation Link to Emission Calc

Workbook 

2104006000 Residential Natural Gas Residential_Natural_Gas_2104006000_ Documentation.zip Residential_Natural_Gas_2

_Emissions.zip 

2104007000 Residential LPG Residential_LPG_2104007000_Documen tation.zip Residential_LPG_2104007

ons.zip 

2104008nnn 2104009000 

Residential Wood 

Combustion and Wax 

Firelogs 

Residential_Wood_Combustion_Docume

ntation.zip RWC_2008_Toolv4.1_Feb0

2104011000 Residential Kerosene Residential_Kerosene_2104011000_Doc umentation.zip Residential_Kerosene_210

missions.zip 

2401001000 Architectural Coatings Solvent_Utilization_Documentation.zip Surface_Coating_Architect

g_2401001000_Emiss

2401005000 Automobile Refinishing Solvent_Utilization_Documentation.zip Surface_Coating_Automob

ing_2401005000_Emiss

2401008000 Traffic Paints Solvent_Utilization_Documentation.zip Surface_Coating_Traffic_P

1008000_Emission

2401015000 Factory Finished Wood Solvent_Utilization_Documentation.zip Surface_Coating_Factory_

ood_2401015000_Emis

2401020000 Wood Furniture and Fixtures Solvent_Utilization_Documentation.zip Surface_Coating_Wood_F

d_Fixtures_401020000_Em

2401025000 Metal Furniture Solvent_Utilization_Documentation.zip Surface_Coating_Metal_Fu

1025000_Emission

2401030000 Paper, Film and Foil Solvent_Utilization_Documentation.zip Surface_Coating_Paper_F

l_2401030000_Emissi

2401040000 Metal Cans Solvent_Utilization_Documentation.zip Surface_Coating_Metal_C

_2401040000_Emissio

2401045000 Metal Sheet, Strip and Coils Solvent_Utilization_Documentation.zip Surface_Coating_Metal_S

Coil_2401045000_Emis

2401055000 Machinery and Equipment Solvent_Utilization_Documentation.zip Surface_Coating_Machine

ipment_2401055000_Em

Solvent Usage - Surface 

Coatings 

2401060000 Appliances Solvent_Utilization_Documentation.zip Surface_Coating_Applianc

0000_Emissions.z
9 

Source Category Source Classification Code(s) Source Classification Code Description Link to Emission Calculation Documentation Link to Emission Calc

Workbook 

2401065000 Electronic and Other Electrical Coatings Solvent_Utilization_Documentation.zip Surface_Coating_Electron

er_Electrical_Coatings_24

Emissions.zip 

2401070000 Motor Vehicles Solvent_Utilization_Documentation.zip Surface_Coating_Motor_V

1070000_Emission

2401075000 Aircraft Solvent_Utilization_Documentation.zip Surface_Coating_Aircraft_2

_Emissions.zip 

2401080000 Marine coatings Solvent_Utilization_Documentation.zip Surface_Coating_Marine_C

01080000_Emission

2401085000 Railroads Solvent_Utilization_Documentation.zip Surface_Coating_Railroad_

0_Emissions.zip 

2401090000 Misc. Manufacturing Solvent_Utilization_Documentation.zip Surface_Coating_Misc_Ma

_2401090000_Emissio

2401100000 Industrial Maintenance Coatings Solvent_Utilization_Documentation.zip Surface_Coating_Industria

ce_Coating_2401100000_E

p 

2401200000 Other Special Purpose Coatings Solvent_Utilization_Documentation.zip Surface_Coating_Other_S

ose_Coating_2401200000_

zip 

2415000000 Cleaning Products: Industrial and Institutional Solvent_Utilization_Documentation.zip Cleaning_Products_Industr

titutional_2415000000_Em

2420000000 Dry Cleaning Solvent_Utilization_Documentation.zip Dry_Cleaning_2420000000

.zip 

2425000000 Graphic Arts Solvent_Utilization_Documentation.zip Graphic_Arts_2425000000

.zip 

2460100000 

Consumer & Commercial - 

Personal Care Products 

(Cosmetics and Toiletries) 

Solvent_Utilization_Documentation.zip

Consumer_Solven

Personal_Care_Products_(

and_Toiletries)_24601000

ns.zip

2460200000 Consumer & Commercial - Household Cleaning Products Solvent_Utilization_Documentation.zip Consumer_Solven

Household_Cleaning_Prod

00000_Emissions

Solvent Usage - Other 

2460400000 Consumer & Commercial - Automotive Aftermarket Solvent_Utilization_Documentation.zip Consumer_SolventsAutom

market_2460400000_Em
10 

Source Category Source Classification Code(s) Source Classification Code Description Link to Emission Calculation Documentation Link to Emission Calc

Workbook 

2460500000 

Consumer & Commercial - 

Coatings and Related 

Products 

Solvent_Utilization_Documentation.zip

Consumer_SolventsCoatin

ated_Products_246050000

s.zip

2460600000 Consumer & Commercial - Adhesives and Sealants Solvent_Utilization_Documentation.zip Consumer_Solven

Adhesives_and_Sealants_

0_Emissions.zip 

2460800000 Consumer & Commercial - FIFRA Regulated Products Solvent_Utilization_Documentation.zip Consumer_Solvents_FIFR

d_Products_2460800000_

2460900000 Consumer & Commercial - Misc. Products Solvent_Utilization_Documentation.zip Consumer_Solven

Misc_Products_246090000

s.zip 
January 2012 

11 Final Report 

a. Adjustment of NEI Data to Reflect 2007 Activity Levels7

When the 2008 nonpoint source NEI reflected 2007 activity data, TranSystems incorporated the 2008 NEI emission 

estimates as the default SEMAP area source inventory. When a source category’s NEI data reflected 2006 or 2008 

emissions activity data, TranSystems updated the NEI estimates to reflect 2007 emission activity levels. Table II-3 

documents these specific adjustments. 

For many area source categories, emissions activity data are not available at the county-level. In these cases, 

county-level emissions are estimated using two sets of activity data: one set reflecting state or regional-level 

emissions activity (e.g., volume of natural gas consumed by the residential sector in each state), and the other set 

representing data that are used to allocate emissions activity to the county-level (e.g., number of houses using 

natural gas as the primary heating fuel in each county). Specifically, the “Backcasting or Forecasting Methodology” 

column in Table II-3 presents the approach used to update emissions activity data to represent 2007, and the 

“County Allocation Method” column identifies the approach used to update the county allocation data. As noted in 

Table II-3, all county allocation data were not updated to 2007. These data were not updated because of the level-ofeffort that would be involved, and the fact that these data are generally not expected to differ significantly from yearto-year. 

b. Adjustment of NEI Data to Remove Activity Reflected in the Point Source Inventory 

To prevent double-counting of emissions in the stationary point source and area source emissions inventories, it was 

necessary to perform point source subtractions on some of the source categories in the TranSystems default area 

source inventory. To facilitate the point source subtractions, TranSystems prepared crosswalks that link area SCCs 

to point SCCs. These crosswalks are presented in Appendix A. The general point source subtraction approach 

consisted of the following steps: 

1. Compile 2007 point source emissions and control efficiency data provided by each state for the applicable 

point SCCs. 

2. Identify potential quality assurance issues for S/L agency review; 

3. Revise control efficiency data to incorporate S/L agency comments; 

4. Back-calculate 2007 uncontrolled point source emissions from reported emissions and control efficiency 

data -- e.g., 40 tpy of controlled NOx emissions and 80 percent control efficiency = 50 tpy of uncontrolled 

NOx emissions. 

5. Sum the emissions for each record from step 4 to the state-level to yield state total uncontrolled point 

source emissions by pollutant. 

6. For each pollutant and state, compute the fraction of total 2007 state-level emissions in the 2007 

TranSystems default inventory represented by area sources (using step 5 total point source uncontrolled 

emissions). 

7. Multiply the emission estimates in the draft base year inventory by the appropriate percentages in step 6 to 

yield area source emissions. 

TranSystems performed the point source subtractions at the state- rather than county-level because of the 

uncertainty associated with the NEI county emission allocations in that actual county-level emissions activity data are 

generally not available (i.e., a surrogate indicator such as employment is typically used to allocate state-level activity 

to counties).8 Although the final inventory reflected Georgia’s request to perform Georgia’s point source subtractions 

at the county-level, Georgia’s revised final inventory reflects subtractions at the state-level.

 

7 In addition, TranSystems incorporated silt content inputs provided by Alabama for updated NEI-based emissions estimation 

calculations used for the residential and nonresidential construction dust categories (SCCs 2311010000 and 2311020000).

8 Efforts to perform subtractions at the county-level commonly result in negative emission estimates.
12 

Table II-3. Methods for Updating 2008 NEI Estimates that Are Not Based on 2007 Emissions Activity 

Source Category 

Source 

Classification 

Code(s) 

Source Classification Code 

Description 

Year of 

Activity 

Data 

Backcasting or Forecasting 

Methodology 

Is Update 

Actual 

Activity 

Data? 

Geographic 

Resolution of 

Backcast/ Forecast 

Data County 

2461021000 Cutback Asphalt 2008 Recalculated using 2007 asphalt usage Yes State Allocated usin

Asphalt Paving 

2461022000 Emulsified Asphalt 2008 Recalculated using 2007 asphalt usage Yes State Allocated usin

Aviation Gasoline 

Distribution: Stage I 2501080050 Aviation Gasoline: Stage I 2008 Recalculated using 2007 AvGas consumption Yes National 

Allocated to dAvGas consuPetroleum Adthen to countydata for gene

Aviation Gasoline 

Distribution: Stage II 2501080100 Aviation Gasoline: Stage II 2008 Recalculated using 2007 AvGas consumption Yes National 

Allocated to dAvGas consuPetroleum Adthen to countydata for gene

Commercial Cooking 2302002nnn 2302003nnn Commercial Cooking 2008 Recalculated using 2007 population estimates Yes County 

2311010000 Residential Construction 2008 

Recalculated surface soil estimate using new privately owned housing units started in 2007 (all other activity data reflects 2007) 

Yes Regional Allocated to c

housing units 

2311020000 Non-Residential Construction 2008 Recalculated using 2007 value of construction put in place Yes National Did not revise 

(based on 200construction e

Construction Dust 

2311030000 Road Construction 2006 Recalculated using 2007 FHWA capital outlays Yes State NEI county al

building starts

25010110nn 25010120nn Portable Fuel Containers 2008 Estimated 2007 using a linear fit between 2002 and 2010 emissions N/A County This is the sa

estimate 2008 

2501050120 Gasoline Distribution Stage I; Bulk Terminals 2008 Recalculated using 2007 national volume of wholesale gasoline supplied Yes National 

Allocated to srefinery, bulk plant stocks oto county-leveBusiness Patt42471 

2501055120 Gasoline Distribution Stage I; Bulk Plants 2008 Recalculated using EIA's estimate of 2007 finished motor gasoline supplied No National Allocated to c

County Busincode 42471 

Gasoline Distribution 

2501060100 Gasoline Distribution Stage II; 2008 Applied county-level VMT ratio: Yes County 
13 

Source Category 

Source 

Classification 

Code(s) 

Source Classification Code 

Description 

Year of 

Activity 

Data 

Backcasting or Forecasting 

Methodology 

Is Update 

Actual 

Activity 

Data? 

Geographic 

Resolution of 

Backcast/ Forecast 

Data County 

 Gasoline Service Stations VMT from 2007 NMIM run : VMT 

from 2008 NMIM run* 

2501060201 

Gasoline Distribution Stage I; 

Underground storage tank, 

breathing and emptying 

2008 

Applied county-level CO2 emissions ratio: CO2 emissions from 2007 NMIM run : CO2 emissions from 2008 NMIM run 

No County 

2505030120 Gasoline Distribution Stage I; Tank Trucks in Transit 2008 

Applied county-level CO2 emissions ratio: CO2 emissions from 2007 NMIM run : CO2 emissions from 2008 NMIM run 

No County 

2505040120 Gasoline Distribution Stage 1; Pipelines 2008 Recalculated using 2007 national volume of wholesale gasoline supplied Yes National 

Allocated to Pfinished motopipeline in eato county-leveBusiness Patt42471 

2610000100 Open Burning - Yard Waste - Leaves 2008 Recalculated using 2007 population estimate Yes County 2610000400 Open Burning - Yard Waste - Brush 2008 Recalculated using 2007 population estimate Open Burning Yes County 

2610030000 Open Burning - Household Waste 2008 Recalculated using 2007 population estimate Yes County 

Publicly Owned 

Treatment Works 

(POTW) 

2630020000 Publicly Owned Treatment Works (POTW) 2008 

Estimated 2007 using a linear fit between 2004 and 2010 POTW flow rates. Allocate to county-level using 2007 population. 

Yes National 

This is the saestimate 2008 Allocated to cpopulation es

2104001000 Residential Anthracite Coal 2006 

Recalculated using 2007 coal consumption data and 2007 ratio of anthracite to bituminous coal consumption 

Yes State County alloca

Census data 

2104002000 Residential Bituminous Coal 2006 

Recalculated using 2007 coal consumption data and 2007 ratio of anthracite to bituminous coal consumption 

Yes State County alloca

Census data 

2104004000 Residential Distillate Oil 2006 Recalculated using 2007 distillate oil consumption Yes State County alloca

Census data 

Residential Heating 

2104006000 Residential Natural Gas 2006 Recalculated using 2007 natural gas consumption Yes State County alloca

Census data 
14 

Source Category 

Source 

Classification 

Code(s) 

Source Classification Code 

Description 

Year of 

Activity 

Data 

Backcasting or Forecasting 

Methodology 

Is Update 

Actual 

Activity 

Data? 

Geographic 

Resolution of 

Backcast/ Forecast 

Data County 

2104007000 Residential LPG 2006 Recalculated using 2007 LPG consumption Yes State County alloca

Census data 

2104011000 Residential Kerosene 2006 Recalculated using 2007 kerosene consumption Yes State County alloca

Census data 

2401001000 Architectural Coatings 2008 Recalculated using 2007 population estimate Yes County 2401005000 Automobile Refinishing 2006 Recalculated using 2007 employment data Yes County 2401015000 Factory Finished Wood 2006 Recalculated using 2007 employment data Yes County 2401020000 Wood Furniture and Fixtures 2006 Recalculated using 2007 employment data Yes County 2401025000 Metal Furniture 2006 Recalculated using 2007 employment data Yes County 2401030000 Paper, Film and Foil 2006 Recalculated using 2007 employment data Yes County 2401040000 Metal Cans 2006 Recalculated using 2007 employment data Yes County 2401045000 Metal Sheet, Strip and Coils 2006 Recalculated using 2007 employment data Yes County 2401055000 Machinery and Equipment 2006 Recalculated using 2007 employment data Yes County 2401060000 Appliances 2006 Recalculated using 2007 employment data Yes County 2401065000 Electronic and Other Electrical Coatings 2006 Recalculated using 2007 employment data Yes County 2401070000 Motor Vehicles 2006 Recalculated using 2007 employment data Yes County 2401075000 Aircraft 2006 Recalculated using 2007 employment data Yes County 2401080000 Marine coatings 2006 Recalculated using 2007 employment data Yes County 2401085000 Railroads 2006 Recalculated using 2007 employment data Yes County 2401090000 Misc. Manufacturing 2006 Recalculated using 2007 employment data Yes County 

Solvent Usage - 

Surface Coatings 

2401100000 Industrial Maintenance Coatings 2008 Recalculated using 2007 population estimate Yes County 
15 

Source Category 

Source 

Classification 

Code(s) 

Source Classification Code 

Description 

Year of 

Activity 

Data 

Backcasting or Forecasting 

Methodology 

Is Update 

Actual 

Activity 

Data? 

Geographic 

Resolution of 

Backcast/ Forecast 

Data County 

2401200000 Other Special Purpose Coatings 2008 Recalculated using 2007 population estimate Yes County 

2415000000 Cleaning Products: Industrial and Institutional 2006 Recalculated using 2007 employment data Yes County 2420000000 Dry Cleaning 2006 Recalculated using 2007 employment data Yes County 2425000000 Graphic Arts 2006 Recalculated using 2007 employment data Yes County 2460100000 

Consumer & Commercial - 

Personal Care Products 

(Cosmetics and Toiletries) 

2008 Recalculated using 2007 population estimate Yes County 

2460200000 Consumer & Commercial - Household Cleaning Products 2008 Recalculated using 2007 population estimate Yes County 2460400000 Consumer & Commercial - Automotive Aftermarket 2008 Recalculated using 2007 population estimate Yes County 2460500000 Consumer & Commercial - Coatings and Related Products 2008 Recalculated using 2007 population estimate Yes County 2460600000 Consumer & Commercial - Adhesives and Sealants 2008 Recalculated using 2007 population estimate Yes County 2460800000 Consumer & Commercial - FIFRA Regulated Products 2008 Recalculated using 2007 population estimate Yes County 

Solvent Usage - Other 

2460900000 Consumer & Commercial - Misc. Products 2008 Recalculated using 2007 population estimate Yes County 

*Note that Stage II gasoline refueling VOC emissions were revised from the emissions reported in the final version of the 2007 SEMAP inventory, using updated 2007/2008 VMT adjustment factor ratio

the 2007 VMT data that was used as input to MOVES onroad mobile source emissions modeling runs. 
January 2012 

 16 Final Report 

As a final step, TranSystems set post-subtraction PM2.5-PRI emissions equal to PM10-PRI emissions in cases 

where the initial post-subtraction emissions indicated that PM2.5-PRI emissions were greater than PM10-PRI 

emissions. 

Because of the inconsistent reporting of throughput data in the SEMAP point source inventory, throughput data were 

used in the point source subtraction procedure in only a limited number of cases. These cases are listed below in 

Table II-4. For these areas/SCCs, all pollutants’ total emissions are adjusted by the same percentage. For a few 

area source categories, it was necessary to incorporate source category-specific point source subtraction 

procedures. Appendix A summarizes the specific point source subtraction approaches for these source categories. 

Table II-4. Throughput-Based Area Source Emission Adjustments 

Area SCC Area Source % 

Jefferson County, KY 2102008000 95.66 

2102002000 25.35 

2102004000 0.00 

2102005000 0.00 

2102006000 21.33 

2102007000 0.00 

2102008000 43.40 

2103004000 93.14 

2103006000 94.10 

South Carolina 

2103007000 99.84 

2102006000 76.71 

Knox County, TN 2103006000 99.13 

2103008000 49.36 Tennessee - Rest of 

State 2401015000 94.40 

2. Estimation of Area Source Emissions from Industrial and Commercial/Fuel Combustion 

In early 2010, the 2008 NEI data for the ICI fuel combustion categories represented total emission activity estimates, 

rather than area source emission estimates. Because emission estimates were not available and because of the 

relative importance of this category, TranSystems recommended that 2007 ICI combustion area source emission 

estimates be developed as part of this project. This section documents the emission inventory development 

methodology that TranSystems used in preparing 2007 year ICI fuel combustion area source emission estimates for 

the SESARM states. The following are elements of the methodology that provide improvements over the 2008 NEI 

methodology: 

 Obtained Industrial and Commercial/Institutional energy consumption by fuel type and SESARM state for 

the year 2007 from the Energy Information Administration (EIA)’s State Energy Data System (SEDS) – the 

2008 NEI used 2006 year data; 
January 2012 

 17 Final Report 

 Obtained geographic- and year-specific estimates of non-fuel use consumption of industrial energy from the 

2006 Manufacturing Energy Consumption Survey (MECS) – the 2008 NEI used data from the 2002 MECS 

survey; 

 Applied a county allocation procedure that reflects the energy-intensity of each industrial sector – the 2008 

NEI methods only reflect the number of employees in each sector; and 

 Updated SO2 emission factors to reflect coal sulfur content estimates for coal used in the industrial sector in 

2007 – a recent review of industrial coal sulfur content values concluded that the NEI values are based on 

unrepresentative data (Pechan, 2009b). 

Table II-5 identifies the SCCs for which TranSystems prepared ICI fuel combustion area source emission estimates. 

The key data inputs in the emissions estimation methodology are: 

1. Total Industrial and total Commercial/Institutional energy consumption by fuel type and SESARM state for 

the year 2007; 

2. Estimates of the percentage of total ICI distillate fuel and liquefied petroleum gas (LPG) consumption from 

stationary sources; 

3. Industrial energy consumption used for non-fuel purposes by fuel type and state in 2006; 

4. ICI energy consumption by fuel type for point sources by SESARM state in year 2007; 

5. Emission factors relating emission rates to volume of energy consumed by fuel type for the ICI sectors; 

6. Sulfur content of coal consumed in the ICI sectors by state in year 2007; 

7. County-level Industrial sector energy consumption estimates by state for year 2007; and 

8. County-level Commercial/Institutional sector employment by state for the year 2006.9

Table II.5. ICI Fuel Combustion Area Source Classification Codes 

SCC DESCRIPTION 

2102001000Stationary Source Fuel Combustion; Industrial; Anthracite Coal; Total: All Boiler Types 

2102002000Stationary Source Fuel Combustion; Industrial; Bituminous/Subbituminous Coal; Total: All Boiler Types 

2102004000Stationary Source Fuel Combustion; Industrial; Distillate Oil; Total: Boilers and IC Engines 

2102005000Stationary Source Fuel Combustion; Industrial; Residual Oil; Total: All Boiler Types 

2102006000Stationary Source Fuel Combustion; Industrial; Natural Gas; Total: Boilers and IC Engines 

2102007000Stationary Source Fuel Combustion; Industrial; Liquid Petroleum Gas; Total: All Boiler Types 

2102008000Stationary Source Fuel Combustion; Industrial; Wood; Total: All Boiler Types 

2102011000Stationary Source Fuel Combustion; Industrial; Kerosene; Total: All Boiler Types 

2103001000Stationary Source Fuel Combustion; Commercial/Institutional; Anthracite Coal; Total: All Boiler Types 

2103002000Stationary Source Fuel Combustion; Commercial/Institutional; Bituminous/Subbituminous Coal; Total: All Boiler Types

2103004000Stationary Source Fuel Combustion; Commercial/Institutional; Distillate Oil; Total: Boilers and IC Engines 

2103005000Stationary Source Fuel Combustion; Commercial/Institutional; Residual Oil; Total: All Boiler Types 

2103006000Stationary Source Fuel Combustion; Commercial/Institutional; Natural Gas; Total: Boilers and IC Engines 

2103007000Stationary Source Fuel Combustion; Commercial/Institutional; Liquid Petroleum Gas; Total: All Combustor Types 

2103008000Stationary Source Fuel Combustion; Commercial/Institutional; Wood; Total: All Boiler Types 

2103011000Stationary Source Fuel Combustion; Commercial/Institutional; Kerosene; Total: All Combustor Types 

 

9 To conserve project resources, Pechan relied on 2006 employment data compiled in support of the 2008 NEI rather than 

develop 2007 employment data (note that year-to-year county employment proportions are expected to remain relatively 

constant).
January 2012 

 18 Final Report 

The following sections describe the methodology/data source(s) for developing each of these data inputs, and the 

source(s) of information for each of these data elements. In selecting the information sources for each of these data 

elements, TranSystems evaluated the completeness, representativeness, comparability, and accuracy criteria 

identified in the Quality Assurance Project Plan (QAPP) for this project. For example, information sources that 

provide data specific to the source category//period were selected over those that were less specific. 

a. Total ICI Energy Consumption 

For total Industrial and total Commercial/Institutional energy consumption by fuel type/state, TranSystems primarily 

used the same source that EPA uses in developing ICI combustion emission estimates for the NEI –EIA’s SEDS 

(EIA, 2009a). The SEDS provides total energy consumption estimates by sector, state, fuel type, and year. To 

facilitate use with the criteria pollutant emission factors, TranSystems compiled the SEDS energy consumption data 

in both sets of units provided by the EIA: physical units and British thermal units (Btus). For estimates of industrial 

distillate consumption, TranSystems relied on estimates reported in EIA’s “Fuel Oil and Kerosene Sales” (EIA, 

2009b). This source is preferred over the SEDS data because it provides additional sectoral detail that is needed to 

perform the stationary source energy consumption adjustments described below. 

b. Stationary Source Energy Consumption 

To avoid double-counting with energy consumption accounted for in mobile source inventories, it was necessary to 

adjust 2007 year SEDS distillate and LPG consumption estimates for mobile source fuel consumption. For LPG, the 

adjustments account for energy consumption reflected in the nonroad mobile sector. The adjustments were 

performed by subtracting estimated proportions of total Industrial sector and Commercial sector consumption 

computed from a national NONROAD model run. TranSystems compiled national LPG consumption estimates for 

relevant SCCs from a 2006 run of EPA’s NONROAD model (a 2006 run was performed in support of the NEI—it is 

not anticipated that the percentages differ considerably between 2006 and 2007). Table II-6 identifies a complete list 

of nonroad SCCs associated with Industrial and Commercial sector LPG. The shaded entries in this table indicate 

where NONROAD reports LPG consumption. This procedure estimates that nonroad mobile sources account for 9 

percent of Industrial sector, and 18 percent of Commercial sector LPG consumption. The SEDS LPG consumption 

estimates for each state/sector were adjusted downward using these percentages. 

For distillate oil, it was necessary to remove energy consumption reflected in onroad/nonroad mobile source emission 

inventories. To facilitate this step, TranSystems used more detailed distillate fuel consumption estimates reported in 

EIA’s “Fuel Oil and Kerosene Sales,” and stationary source fuel consumption percentage assumptions used in the 

regulatory impact analysis for EPA’s nonroad diesel emissions rulemaking (EPA, 2003a). Table II-7 displays the 

assumptions that were applied to the state-level Industrial sector distillate fuel consumption estimates reported in 

“Fuel Oil and Kerosene Sales” to estimate Industrial sector stationary source consumption. Table II-8 identifies the 

assumptions that were applied to estimate total stationary source Commercial/Institutional sector consumption. 
19 

Table II-6. LPG Nonroad Mobile Source Classification Codes 

SCC Description_2 Description_3 Description_4 

Industrial Sector

2267002000 LPG Construction and Mining Equipment All 2267002003 LPG Construction and Mining Equipment Pavers 2267002006 LPG Construction and Mining Equipment Tampers/Rammers 2267002009 LPG Construction and Mining Equipment Plate Compactors 2267002015 LPG Construction and Mining Equipment Rollers 2267002018 LPG Construction and Mining Equipment Scrapers 2267002021 LPG Construction and Mining Equipment Paving Equipment 2267002024 LPG Construction and Mining Equipment Surfacing Equipment 2267002027 LPG Construction and Mining Equipment Signal Boards/Light Plants 2267002030 LPG Construction and Mining Equipment Trenchers 2267002033 LPG Construction and Mining Equipment Bore/Drill Rigs 2267002036 LPG Construction and Mining Equipment Excavators 2267002039 LPG Construction and Mining Equipment Concrete/Industrial Saws 2267002042 LPG Construction and Mining Equipment Cement and Mortar Mixers 2267002045 LPG Construction and Mining Equipment Cranes 2267002048 LPG Construction and Mining Equipment Graders 2267002051 LPG Construction and Mining Equipment Off-highway Trucks 2267002054 LPG Construction and Mining Equipment Crushing/Processing Equip2267002057 LPG Construction and Mining Equipment Rough Terrain Forklifts 2267002060 LPG Construction and Mining Equipment Rubber Tire Loaders 2267002063 LPG Construction and Mining Equipment Rubber Tire Tractors/Doze2267002066 LPG Construction and Mining Equipment Tractors/Loaders/Backhoe2267002069 LPG Construction and Mining Equipment Crawler Tractor/Dozers 2267002072 LPG Construction and Mining Equipment Skid Steer Loaders 2267002075 LPG Construction and Mining Equipment Off-Highway Tractors 2267002078 LPG Construction and Mining Equipment Dumpers/Tenders 2267002081 LPG Construction and Mining Equipment Other Construction Equipm2267003000 LPG Industrial Equipment All 2267003010 LPG Industrial Equipment Aerial Lifts 2267003020 LPG Industrial Equipment Forklifts 2267003030 LPG Industrial Equipment Sweepers/Scrubbers 2267003040 LPG Industrial Equipment Other General Industrial E
20 

SCC Description_2 Description_3 Description_4 

2267003050 LPG Industrial Equipment Other Material Handling Eq2267003060 LPG Industrial Equipment AC\Refrigeration 2267003070 LPG Industrial Equipment Terminal Tractors 2267005000 LPG Agricultural Equipment All 2267005010 LPG Agricultural Equipment 2-Wheel Tractors 2267005015 LPG Agricultural Equipment Agricultural Tractors 2267005020 LPG Agricultural Equipment Combines 2267005025 LPG Agricultural Equipment Balers 2267005030 LPG Agricultural Equipment Agricultural Mowers 2267005035 LPG Agricultural Equipment Sprayers 2267005040 LPG Agricultural Equipment Tillers >6 HP 2267005045 LPG Agricultural Equipment Swathers 2267005050 LPG Agricultural Equipment Hydro-power Units 2267005055 LPG Agricultural Equipment Other Agricultural Equipme2267005060 LPG Agricultural Equipment Irrigation Sets 2267007000 LPG Logging Equipment All 2267007005 LPG Logging Equipment Chain Saws > 6 HP 2267007010 LPG Logging Equipment Shredders > 6 HP 2267007015 LPG Logging Equipment Forest Eqp – Feller/Bunch2267009000 LPG Underground Mining Equipment All 2267009010 LPG Underground Mining Equipment Other Underground Mining 2267010000 LPG Industrial Equipment All 2267010010 LPG Industrial Equipment Other Oil Field Equipment 

Commercial Sector

2267004011 LPG Lawn and Garden Equipment Lawn Mowers (Commercia2267004016 LPG Lawn and Garden Equipment Rotary Tillers < 6 HP (Com2267004021 LPG Lawn and Garden Equipment Chain Saws < 6 HP (Comm2267004026 LPG Lawn and Garden Equipment Trimmers/Edgers/Brush C2267004031 LPG Lawn and Garden Equipment Leafblowers/Vacuums (Co2267004036 LPG Lawn and Garden Equipment Snowblowers (Commercia2267004041 LPG Lawn and Garden Equipment Rear Engine Riding Mowe2267004046 LPG Lawn and Garden Equipment Front Mowers (Commercia2267004051 LPG Lawn and Garden Equipment Shredders < 6 HP (Comm2267004056 LPG Lawn and Garden Equipment Lawn and Garden Tractors 2267004061 LPG Lawn and Garden Equipment Wood Splitters (Commerci2267004066 LPG Lawn and Garden Equipment Chippers/Stump Grinders 
21 

SCC Description_2 Description_3 Description_4 

2267004071 LPG Lawn and Garden Equipment Turf Equipment (Commerc2267004076 LPG Lawn and Garden Equipment Other Lawn and Garden E2267006000 LPG Commercial Equipment All 2267006005 LPG Commercial Equipment Generator Sets 2267006010 LPG Commercial Equipment Pumps 2267006015 LPG Commercial Equipment Air Compressors 2267006020 LPG Commercial Equipment Gas Compressors 2267006025 LPG Commercial Equipment Welders 2267006030 LPG Commercial Equipment Pressure Washers 2267006035 LPG Commercial Equipment Hydro-power Units 2267008000 LPG Airport Ground Support Equipment All 2267008005 LPG Airport Ground Support Equipment Airport Ground Support Eq

Note: EPA’s NONROAD model reports emissions/fuel consumption for the shaded entries. 
January 2012 

22 Final Report 

Table II-7. Assumptions Used to Estimate Industrial Sector Stationary Source Distillate Fuel Consumption 

Sector Distillate Fuel Type 

% of Total 

Consumption from 

Stationary Sources 

No. 1 Distillate Fuel Oil 60 

No. 2 Distillate Fuel Oil 100 

No. 2 Distillate/Low and High Sulfur Diesel 15a

Industrial 

No. 4 Distillate Fuel Oil 100 

Farm Diesel 0 

Other Distillate Fuel Oil 100 

Off-Highway 

(Construction and Other) 

Distillate Fuel Oil 5 

Oil Company Distillate Fuel Oil 50 

a This value differs from the 0 percent assumption adopted in EPA’s nonroad diesel emissions rulemaking because it is 

known that some diesel fuel is used by stationary sources (a 15 percent value was selected for use as an approximate 

mid-point of a potential range of 8 to 24 percent stationary source use computed from a review of national data from the 

EIA’s Manufacturing Energy Consumption Survey and “Fuel Oil and Kerosene Sales”). 

Table II-8. Assumptions Used to Estimate Commercial/Institutional Sector Stationary Source 

Distillate Fuel Consumption 

Sector Distillate Fuel Type 

% of Total Consumption 

from Stationary Sources

No. 1 Distillate Fuel Oil 80 

No. 2 Distillate Fuel Oil 100 

No. 2 Distillate/Ultra-Low, Low, and High Sulfur Diesel 0a

Commercial 

No. 4 Distillate Fuel Oil 100 

a A very small portion of total commercial/institutional diesel is actually consumed by point sources (SCC 203001xx). 

c. Non-Fuel Energy Consumption 

Some Industrial sector energy is consumed for non-fuel purposes. For example, natural gas is used as a feedstock 

in chemical manufacturing plants and to make nitrogenous fertilizer, and LPG is used to create intermediate products 

that are made into plastics. To estimate the volume of fuel that is associated with ICI combustion, it is necessary to 

subtract the volume of fuel consumption for non-energy uses from the volume of total fuel consumption. The EPA’s 

State Inventory Tool (SIT) provides national defaults representing the percentage of total Industrial fuel consumption 

from non-energy uses. These default values have an additional limitation beyond their lack of geographic detail - 

they represent the EIA’s definition of the Industrial sector, which includes fuel use that is accounted for in other 

inventory source categories (e.g., Farm, Mining, Construction, and Commercial sectors fuel use that is accounted for 

in the nonroad inventory). Because of these limitations, TranSystems used regional non-fuel use percentages 

computed from energy consumption data from the EIA’s 2006 Manufacturing Energy Consumption Survey (MECS) 

for all fuel types (EIA, 2009c). 

There are two reasons why MECS provides a more representative data set for use in this project: (1) MECS 

provides data specific to the region of interest; and (2) MECS focuses solely on the Manufacturing sector. The latter 
January 2012 

23 Final Report 

characteristic is particularly important for fuel types which consume significant amounts of non-Manufacturing sector 

energy that is already included elsewhere (e.g., distillate fuel used by the Construction sector, which is included in 

the nonroad inventory). The MECS non-fuel consumption data treat coal that is used to produce coke as a feedstock 

(Lorenz, 2009). However, available data indicate that only four of the SESARM states produce coke (Alabama, 

Kentucky, Virginia, West Virginia; EIA, 2008a) and coke combustion is not included in the area source emissions 

inventory. Because of this, TranSystems estimated the percent energy consumption from non-fuel use for SESARM 

states without coke plants by subtracting the coal used in the primary metals industrial subsector (NAICS code 331*) 

from the MECS coal dataset. More than 97 percent of coking coal is ultimately consumed in this subsector (Lorenz, 

2009). Table II-9 presents the non-fuel use percentages by type of energy. 

Table II-9. Industrial Sector Energy Consumption from Non-Fuel Uses 

2006 MECS % Energy Consumption from Non-Fuel Use 

Energy Type South1 National 

Residual 30% 20% 

Distillate 12% 12% 

Natural Gas 11% 7% 

LPG/NGL 99% 97% 

Coal (excludes coking coal) 9% 6% 

Sources: EIA, 2009c and Lorenz, 2009. 

1 All SESARM states are in the South region. 

d. Emission Factors 

Table II-10 presents the criteria pollutant emission factors that TranSystems used in calculating ICI combustion area 

source emissions. Except as noted below, all criteria air pollutant emission factors are from an EPA database used 

to prepare the 2008 nonpoint source NEI (Huntley, 2009).10 Wood combustion emission factors are from AP-42

(EPA, 2003b). Because there are no NH3 emission factors for ICI fuel combustion available in the 2008 NEI 

emission factor database, AP-42, or EPA’s WebFIRE, TranSystems used emission factors reported in an NH3 

emissions Emission Inventory Improvement Program (EIIP) guidance document (Pechan, 2004).

 

10 All criteria pollutant emission factors were rounded to two decimal places.
24 

Table II-10. Criteria Pollutant Emission Factors for ICI Combustion Area Source Categories 

SCC Description 

Emission 

Factor Units1 VOC NOx CO SO2 PM2.5-FIL PM10-FI

2102001000 Industrial Anthracite Coal lb/ton 0.3 9 0.6 39 * S% 0.48 * A% 1.1 * A2102002000 Industrial Bitum/Subbitum Coal lb/ton 0.05 11 5 38 * S% 1.4 2102004000 Industrial Distillate Oil lb/1000 gal 0.2 20 5 142 * S% 0.25 2102005000 Industrial Residual Oil lb/1000 gal 0.28 55 5 157 * S% 4.67 * (1.12 * S% + 0.37) 7.17 * (1.1

S% + 0.3

2102006000 Industrial Natural Gas lb/MMcf 5.5 100 84 0.6 0.11 02102007000 Industrial LPG 2 lb/1000 bbl 21.9 398 502 2.39 0.438 0.72102008000 Industrial Wood 3 lb/MMBtu 0.017 0.22 0.6 0.025 0.43 02102011000 Industrial Kerosene lb/1000 gal 0.19 19.29 4.82 142 * S% 0.24 0.2103001000 Comm/Inst Anthracite Coal lb/ton 0.3 9 0.6 39 * S% 0.48 * A% 1.1 * A2103002000 Comm/Inst Bitum/Subbitum Coal lb/ton 0.05 11 5 38 * S% 1.4 2103004000 Comm/Inst Distillate Oil lb/1000 gal 0.34 20 5 142 * S% 0.83 1.2103005000 Comm/Inst Residual Oil lb/1000 gal 1.13 55 5 157 * S% 1.92 * (1.12 * S% + 0.37) 5.17 * (1.1

S% + 0.3

2103006000 Comm/Inst Natural Gas lb/MMcf 5.5 100 84 0.6 0.11 02103007000 Comm/Inst LPG lb/1000 bbl 21.9 398 502 2.39 0.438 0.72103008000 Comm/Inst Wood 3 lb/MMBtu 0.017 0.22 0.6 0.025 0.43 02103011000 Comm/Inst Kerosene lb/1000 gal 0.33 19.29 4.82 142 * S% 0.8 1.

Source: Unless otherwise noted, 2008 nonpoint source NEI (Huntley, 2009). Notes: 1 lb = pound; ton = short ton; gal = gallon; MMcf = million cubic feet; MMBtu = million British thermal units; bbl = barrels; S = sulfur content; A = ash 

 content 

2 Emission factors from Commercial/Institutional LPG. 3 Emission factors from AP-42, Section 1.6, Wood Residue Combustion in Boilers (EPA, 2003b). 

4 Emission factor from Pechan, 2004 (converted from lb/ton using 0.08 ton/MMBtu for Industrial sector and 0.0625 ton/MMBtu for Commercial sector). 
January 2012 

 25 Final Report 

With a few notable exceptions, the 2008 NEI emission factors are the same as those used for the 2002 NEI.11 The 

PM emission factors for natural gas and LPG combustion are the major exceptions. Because the 2002 emission 

factors were deemed too high because of artifact formation in the test method (method 202) during stack testing, 

EPA developed a set of SCC-specific adjustment factors to apply to the 2002 NEI to better reflect PM emissions from 

these fuels.12 In preparation for the 2008 NEI, EPA developed revised natural gas PM emission factors by applying 

these adjustment factors to the 2002 NEI emission factors. Revised emission factors for LPG were computed by 

applying appropriate conversion factors to the updated natural gas emission factors. 

e. Coal Sulfur and Ash Content 

For a recent ICI combustion area source inventory project for the Central Regional Air Planning Association 

(CENRAP), TranSystems evaluated the reliability of various data sources for coal sulfur content to be used to 

estimate emissions in that project. TranSystems evaluated five potential data sources: 

1. 2002 CENRAP state point source inventories; 

2. U.S. Geological Survey (USGS)’s U.S. Coal Quality Database; 

3. Energy Information Administration (EIA)’s “Cost and Quality of Fuels for Electric Plants 2002 and 2003.” 

4. EIA’s “EIA-423 - Monthly Nonutility Fuel Receipts and Fuel Quality Data, 2002;” and 

5. EIA’s “Quarterly Coal Report, January–March 2003.” 

TranSystems evaluated these coal sulfur content data sources with respect to two specific criteria identified in the 

QAPP for this project: representativeness and accuracy. Based on these evaluations, TranSystems used the 

average sulfur content data from EIA’s “Quarterly Coal Report” to estimate the sulfur content of both Industrial and 

Commercial/Institutional sector bituminous/subbituminous coal in each SESARM state (EIA, 2008b). Even though 

this source does not report whether the coal is bituminous/subbituminous or anthracite, it is appropriate to treat the 

values for this source as representative of bituminous/subbituminous coal because anthracite accounts for only a 

very small proportion of coal consumption in SESARM states. 

Due to the lack of available data for anthracite coal, TranSystems used the average ash content (13.38 percent) and 

sulfur content (0.89 percent) from the 2002 NEI for the Industrial and Commercial/Institutional sectors. These 

percentages are based on the composition of anthracite coal seams in Pennsylvania, where all anthracite coal 

imported by SESARM states originated in 2007 (EIA, 2008c). Tables II-11 and II-12 report the coal ash and/or sulfur 

content values that were used in calculating ICI combustion area source emissions for the 2007 base year inventory. 

 

11 The 2002 NEI documentation provides citations to the AP-42 source for each emission factor.

12 These factors reduce PM emissions by more than 90 percent.
January 2012 

 26 Final Report 

Table II-11. Bituminous/Subbituminous Coal Sulfur Content for 2007 ICI Combustion 

State 

Industrial Coal1

Sulfur Content (%) 

Commercial/ 

Institutional Coal2

Sulfur Content (%) 

Alabama 0.94 0.94 

Florida 0.87 0.87 

Georgia 0.95 0.95 

Kentucky 0.89 0.89 

Mississippi 2.01 2.01 

South Carolina 1.10 1.10 

North Carolina 0.90 0.90 

Tennessee 1.21 1.21 

Virginia 0.96 0.96 

West Virginia 0.95 0.95 

1Reflects the average from coal received in 2007. 

2Assumes that coal burned in the Commercial/Institutional sector has the same composition as coal 

burned in the Industrial sector. 

Table II-12. Anthracite Coal Ash and Sulfur Content for 2007 ICI Combustion 

Industrial Commercial/Institutional 

State 

Ash Content 

(%) Sulfur Content (%) 

Ash Content 

(%) Sulfur Content (%) 

Alabama 13.38 0.89 13.38 0.89 

Florida 13.38 0.89 13.38 0.89 

Georgia 13.38 0.89 13.38 0.89 

Kentucky 13.38 0.89 13.38 0.89 

Mississippi 13.38 0.89 13.38 0.89 

South Carolina 13.38 0.89 13.38 0.89 

North Carolina 13.38 0.89 13.38 0.89 

Tennessee 13.38 0.89 13.38 0.89 

Virginia 13.38 0.89 13.38 0.89 

West Virginia 13.38 0.89 13.38 0.89 
January 2012 

 27 Final Report 

f. County Allocation Data 

After computing state-level area source emissions using the data described above, the next step is to allocate these 

emissions to individual counties. Separate allocation approaches were implemented for the Industrial and 

Commercial/Institutional sectors. For Commercial/sector source categories, the approach relies on county 

employment data compiled from government sources. For Industrial sector source categories, the approach utilizes 

county-level Industrial sector energy consumption estimates developed in this effort. 

Commercial/Institutional 

Because SEDS data originate from EIA fuel sector-specific surveys of energy suppliers,13 TranSystems reviewed 

these survey forms/instructions for further details on what SEDS considers Commercial sector use of each fuel. This 

review found that the surveys/guidance do not always provide further clarity. In addition, the EIA has admitted that 

energy suppliers may use their own account classifications as well as EIA guidance in determining whether a 

particular account belongs in the Residential, Commercial, Industrial, or Transportation sector. The only source of 

NAICS-code based EIA definitions of the Commercial energy sector is a “rough crosswalk” between Commercial 

building types and NAICS codes developed for EIA’s Commercial Building Energy Consumption Survey (CBECS). 

With the exception of NAICS code 814 (Private Households), this crosswalk links all NAICS codes between 42 and 

92 with Commercial building energy consumption. Employment data for the CBECS-identified NAICS codes (42 

though 92 with exception of 814) were used to allocate SEDS energy consumption data to individual counties. 

TranSystems used private sector 2006 employment data from County Business Patterns (CBP) and public sector 

2006 employment data from the Census of Governments (Census, 2009a; and Census, 2009b) because these data 

were already compiled in support of the 2008 NEI (year-to-year changes in county employment proportions are 

expected to be minimal). 

Industrial 

Unlike the Commercial sector, documentation provides a clear listing of the NAICS codes associated with SEDS 

Industrial energy consumption data: “the industrial sector encompasses the following types of activity: 

Manufacturing (NAICS codes 31–33); Agriculture, Forestry, Fishing and Hunting (NAICS code 11); Mining, including 

Oil and Gas Extraction (NAICS code 21); and Construction (NAICS code 23).” As noted earlier, a portion of Industrial 

sector consumption (Agriculture, Mining and Construction) is already accounted for in other emission inventory 

sectors and was removed. Therefore, TranSystems did not expand the list of NAICS codes used to represent the 

area source Industrial fuel combustion category beyond the Manufacturing sector NAICS codes (31-33). 

Employment-based county allocation methods lead to overrepresentation of energy consumption in counties with 

sectors that have high employment but low energy intensities (measured on a Btu per employee basis), and viceversa. Given that Manufacturing sectors have much greater energy intensity variability than Commercial/Institutional 

sectors, TranSystems utilized energy use per employee values by NAICS code to improve upon the employmentbased county allocation approach used in the 2008 NEI for the Industrial fuel combustion category. This procedure 

relied on 2007 national energy consumption data by NAICS code as reported by EIA in Annual Energy Outlook (EIA, 

2009d). Energy intensity values were computed by dividing these Btu-based energy consumption estimates by 

NAICS code-level 2007 national employment data. The resulting intensity values were then multiplied by 

county/NAICS code-level employment estimates from CBP to estimate total county energy consumption by NAICS 

code. These values were then summed for the appropriate Industrial fuel combustion NAICS codes. The resulting 

county-level total Industrial energy consumption estimates were used to apportion state-level area source Industrial 

fuel combustion emissions to each county. 

 

13 For natural gas, for example – EIA-176 “Annual Report of Natural and Supplemental Gas Supply and Disposition.” 
January 2012 

 28 Final Report 

Estimation of Withheld Employment Data

Due to concerns with releasing confidential business information, the CBP withholds values for a given county/NAICS 

code if it would be possible to identify individual businesses from these values. In such cases, the CBP reports a 

letter code, representing a particular employment size range. TranSystems used the following procedure to estimate 

data for withheld counties/NAICS codes. 

1. County-level employment for counties with reported values are totaled by state for the applicable NAICS code. 

2. Value from step 1 is subtracted from the state employment value for the NAICS code. 

3. Each of the withheld counties is assigned an initial employment estimate reflecting the midpoint of the CBP 

range code (e.g., code A, which reflects 1-19 employees, is assigned an estimate of 10 employees). 

4. The initial employment estimates from step 3 are then summed to the state level. 

5. The value from step 2 is divided by the value from step 4 to yield an adjustment factor to apply to the initial 

employment estimates to yield employment values that will sum to the state employment total for the applicable 

NAICS code. 

6. The final county-level employment values are estimated by multiplying the initial employment estimates from 

step 3 by the step 5 adjustment factors. 

Example: NAICS 31-33 (Manufacturing) in Maine 

fipsstate fipscty naics empflag emp 

23 001 31---- 6,774 

23 003 31---- 3,124 

23 005 31---- 10,333 

23 007 31---- 1,786 

23 009 31---- 1,954 

23 011 31---- 2,535 

23 013 31---- 1,418 

23 015 31---- F 0 

23 017 31---- 2,888 

23 019 31---- 4,522 

23 021 31---- 948 

23 023 31---- I 0 

23 025 31---- 4,322 

23 027 31---- 1,434 

23 029 31---- 1,014 

23 031 31---- 9,749 

1. The total of employees not including counties 015 and 023 is 52,801. 

2. The state-level CBP reports 59,322 employees in NAICS 31—the difference is 6,521. 

3. County 015 is given a midpoint of 1,750 (since range code F is 1,000-2,499) and County 023 is given a midpoint 

of 17,500. 

4. State total for these two counties is 19,250. 

5. 6,521/19,250 = 0.33875. 

The final employment estimate for county 015 is 1,750 * 0.33875 = 593. The county 023 final employment estimate 

is computed as 17,500 * 0.33875 = 5,928. 
January 2012 

 29 Final Report 

3. Estimation of Area Source Emissions from Residential Wood Combustion 

Residential wood combustion was calculated using the EPA’s Residential Wood Combustion (RWC) Tool. The tool 

uses the following equation to estimate RWC emissions: 

Emissions = (Number of wood-burning appliances) x (Cords of wood burned per appliance) x (Density of 

wood burned) x (Emission factor) 

A review of the spatial distribution of SESARM region PM2.5 emissions from the tool indicated much higher emissions 

in urbanized areas than rural areas. Although there is reason to expect some correlation between the number of 

occupied housing units and residential wood combustion emissions, this correlation would be expected to be fairly 

weak because of at least two factors. The first factor is that housing units in urbanized areas generally have greater 

access to natural gas as a heating fuel, and therefore, would be expected to have a greater penetration of natural 

gas fireplaces than rural areas. The second factor is that the access to inexpensive wood supplies would be 

expected to be much greater in rural areas (and related to this, the proportion of housing units with wood-burning 

appliances that are used as primary heating units – i.e., woodstoves, outdoor hydronic heaters, pellet stoves – would 

also be expected to be greater in rural areas). Review of several wood consumption surveys, including the latest 

survey from Minnesota, also showed a clear trend in households in urbanized areas consuming less wood than their 

counterparts in rural areas. 

Based on this review, SESARM, with primary assistance from Tracy Anderson of the Alabama Department of 

Environmental Management, examined the EPA Tool’s default assumptions for the first two variables in the RWC 

emissions estimation equation. The following describes the specific refinements that SESARM incorporated into a 

revised RWC Tool for these two variables. 

Number of Wood-Burning Appliances 

SESARM incorporated updates to the estimated number of the following types of wood-burning appliances: 

 Fireplaces; 

 Fireplace Insert Uncertified; 

 Fireplace Insert EPA Certified Catalytic; 

 Fireplace Insert EPA Certified Non-catalytic; 

 Woodstove Uncertified; 

 Woodstove EPA Certified Catalytic; 

 Woodstove EPA Certified Non-catalytic; and 

 Fireplaces Burning Wax Logs. 

For these equipment types, the EPA’s RWC tool estimates the number of wood-burning appliances in each county by 

multiplying the county’s number of occupied housing units by an appropriate wood-burning appliance profile. 

Where possible, SESARM first updated the occupied housing unit estimates in the Tool. The Tool estimates the 

number of occupied housing units by multiplying each county’s total number of housing units in 2007, as reported by 

the U.S. Census Bureau, by the county-level occupancy rate in 2000 (last year of occupancy rate data available from 

the Census). For select counties (primarily those with large populations), the Census’ American Community Survey 

(ACS) reports estimates of the 2007 year number of occupied housing units. Several states use the ACS data and 

indicated a preference for its use. Therefore, SESARM updated the EPA tool to use the ACS’ housing unit estimates 

for counties where these data were available. 

A second type of update involved revisions to the wood-burning appliance profiles. Appliance profiles represent the 

fraction of occupied housing units that have each of the wood-burning appliances listed above. The appliance 

profiles were developed from the number of wood burning appliances and number of occupied housing units data 
January 2012 

 30 Final Report 

compiled from the U.S. Census Bureau’s "American Housing Survey" (AHS). The RWC Tool applies appliance 

profiles to one or more geographic locations. The Tool includes a set of Metropolitan Statistical Area (MSA)-specific 

appliance profiles and regional default appliance profiles (Northeast, Midwest, South, and West). Based on new 

information gathered from these surveys, SESARM calculated 12 additional appliance profiles to better characterize 

the wood-burning appliance population. These profiles are as follows: 

1) A default urban appliance profile based on national urban values reported by the 2005 National AHS, 

2) "Sub-MSA" area profiles for each of the following MSAs: 

a. Birmingham, AL; 

b. Miami-Dade County, FL; 

c. Urban Atlanta, GA; 

d. Kenton County, KY; 

e. De Soto County, MS; 

f. Gaston County, NC; 

g. Mecklenburg County, NC; 

h. York County, SC; 

i. Shelby County, TN; 

j. Fairfax County, VA; and 

k. Urban Norfolk-Virginia Beach-Newport News area, VA. 

These sub-MSA appliance profiles were developed using the “sub-area” sections of the original Metropolitan Areas 

AHS used in the RWC tool. In keeping with EPA’s MSA appliance profile assignment approach, SESARM assigned 

the sub-MSA profiles only to the counties to which they applied. 

SESARM developed a default urban appliance profile in an attempt to better characterize wood-burning equipment 

populations in urbanized areas for which the AHS does not report MSA-specific data. This profile reflects national 

average wood-burning appliance information from the 2005 National AHS. The next step was to develop a set of 

criteria for determining what counties should be assigned the applicable regional average appliance profile (South), 

and which would be assigned the new national urban appliance profile. Figure 1 shows the decision tree that 

SESEARM developed to assign each of these two appliance profiles. 
January 2012 

 31 Final Report 

Figure 1. Decision Tree for Assigning Regional Average (Default) or National Urban 

Appliance Profile 
January 2012 

 32 Final Report 

The above does not address the estimated count of the following wood-burning appliance types: 

 Pellet stoves; 

 Indoor furnaces; and 

 Hydronic heaters (also known as outdoor wood boilers). 

The estimates for these equipment types are hard-coded into the RWC Tool. After review of the EPA’s appliance 

count estimation methods for these units, SESARM decided that the estimates for these appliances should also be 

updated. 

In the case of pellet stoves and hydronic heaters, the RWC Tool allocates regional (pellet stoves) or state-level 

(hydronic heater) counts of each appliance type. The RWC Tool utilizes estimates of the number of each type of 

equipment as calculated from cumulative sales data. The Tool then allocates these regional/state estimates to 

counties based on the proportion of regional/state number of woodstoves in each county. Because SESARM’s 

revised RWC Tool includes updated county-level woodstove population estimates, consistency with EPA’s 

methodology requires re-allocating the estimated number of regional/state pellet stoves and hydronic heaters to each 

county using the updated woodstove data incorporated into the revised Tool. 

The RWC Tool estimates the number of wood-burning indoor furnaces by multiplying the estimated number of 

woodstoves in each county by a factor. The EPA calculated this factor (0.53) from data on the number of 

woodstoves and indoor furnaces used for main heating in climate zones 1-3. To be consistent with the RWC Tool 

methods for estimating indoor furnaces, SESARM updated the indoor furnace appliance counts by multiplying the 

revised number of woodstoves in each county by the 0.53 factor. 

Cords of Wood Burned per Appliance

SESARM also incorporated new burn rate profiles that characterize the amount of wood burned in each type of 

appliance. As with the appliance profiles, burn rate profiles can be assigned to one or more geographical areas. The 

EPA’s RWC Tool included burn rate profiles that were developed and refined by EPA using survey data from the U.S. 

Forest Service’s North Central region as the starting point. The EPA adjusted these data based on the ratio of 

energy consumption in the surveyed climate to energy consumption in other areas of the country. For example, if the 

energy consumption in climate zone 5 (the warmest climate zone) was half of the energy consumption in climate 

zone 1 (the surveyed climate zone), burn rates in climate zone 5 were estimated to be 50 percent of the burn rates in 

climate zone 1. The energy consumption data for these adjustments was obtained from the Energy Information 

Administration (EIA)'s 2005 Residential Energy Consumption Survey (RECS). 

SESARM compiled 2005 RECS data to refine the EPA’s burn rates, by computing the average cords of wood burned 

per household for each of three categories: Rural, Urban (sum of cities, towns, and suburbs), and Total. SESARM 

then calculated two ratios: Rural to Total wood consumption per household (1.563); and Urban to Total wood 

consumption per household (0.537). These ratios were then applied to the existing burn rate profiles to create new 

Rural and Urban burn rate profiles for each of the SESARM region climate zones—2, 3, 4, and 5. After the 

appropriate calculations were performed the new burn rate profiles were developed by adding either an “r” for Rural 

or “u” for urban to the original RWC tool default burn rate profile number. They are as follows: 

1. Climate zone 2 : Nu and Nr 

2. Climate zone 3 : 3Au and 3Ar 

3. Climate zone 4 : 4u and 4r 

4. Climate zone 5 : 5u and 5r 

The next step in refining the burn rate information was to identify the criteria for assigning the Rural, Urban, and 

overall average burn rates (the original tool burn rate for a given climate zone) to each county within a climate zone. 

SESEARM developed these criteria, which are represented in Figure 2. 
January 2012 

 33 Final Report 

 

After implementing the appliance profile and burn rate refinements, SESARM developed emission summary 

comparisons of EPA’s default RWC Tool versus the Tool updated by ADEM. These comparisons were submitted for 

State//Local agency review and comment. The following identify the revisions that were implemented based on 

comments supplied by S/L agencies: 

 West Virginia revised the burn rate profiles in the following counties: 

o Berkeley – from default to urban; 

o Fayette – from rural to default; and 

o Jefferson – from rural to default. 

It should also be noted that Shelby County, Tennessee directed SESARM to utilize Local agency RWC emissions in 

place of the RWC Tool emissions. 

Figure 2. Decision Tree for Assigning Average (Default), Urban, or Rural Burn Profiles 
January 2012 

 34 Final Report 

4. Estimation of Area Source Emissions from Gasoline Service Stations/Stage I 

TranSystems estimated stage I gasoline service station emissions using the NEI methodology referenced in 

Table II-2. To improve emission estimates, TranSystems prepared a proposed set of key Stage I gasoline service 

station emission calculation parameter values for review by S/L agencies: (a) county-level gasoline throughput 

values; (b) emission control parameter values; and (c) county/month-level Reid vapor pressure (RVP) values. 

TranSystems specifically requested that agencies provide any updates they have to these values, including updates 

to the following control information: (a) filling technologies used (splash, submerged, and balanced submerged); 

(b) the rule effectiveness of S/L requirements for submerged and/or balanced submerged filling; (c) the rule 

penetration (RP) for submerged and/or balanced submerged filling; and (d) the control efficiency of balanced 

submerged filling. The RP value represents the proportion of throughput that is filled using submerged/balanced 

submerged filling, while the remaining proportion is assumed to be splash filling. In keeping with past NEI practice, 

the default rule effectiveness assumption was 100 percent (rule effectiveness is an adjustment to reflect any 

assumed non-compliance with the requirements of a regulation). The default control efficiency for balanced 

submerged filling was 90 percent for all SESARM counties (control efficiency is the percentage of a source 

category's emissions that is controlled by a control device). There is no control efficiency for submerged filling 

because the emission reduction effects of submerged filling are accounted for in the emission estimation equation 

(via a submerged-filling specific saturation factor) rather than a post-emission estimation adjustment. 

TranSystems reviewed all updated parameter values supplied by S/L agencies, provided follow-up questions/data 

requests to ensure the completeness and validity of the data, and incorporated any updated Stage I emission 

calculation parameter values provided by agencies. TranSystems prepared revised base year stage I gasoline 

service station VOC emission estimates using the agency-supplied values and provided S/L agencies with 

spreadsheets comparing the original and revised emission estimates. TranSystems updated the draft revised 

emission estimates to reflect S/L agency comments, and incorporated the final revised Stage I estimates into the 

revised final stationary area source inventory. 

C. INVENTORY SUPPLEMENTATION/FINAL DATA MERGING 

As directed by S/L agencies, TranSystems supplemented 2007 S/L agency supplied emissions data (when supplied) 

and TranSystems default emissions data with emissions data from the 2002 nonpoint source NEI, or in the case of 

Georgia, the State’s 2005 Consolidated Emissions Reporting Rule (CERR) submittal. To assist agencies that 

supplied S/L emissions data, TranSystems compiled a list of SCC/pollutant combinations in the S/L area’s portion of 

the 2002 nonpoint source NEI that did not match to combinations in either the S/L agency inventory or TranSystems’ 

default inventory. This list was documented in an Excel worksheet and transmitted along with a request for agencies 

to identify whether each combination’s emissions should be carried forward or grown to 2007 using EGAS growth 

factors. TranSystems contacted agencies with any necessary follow-up questions to clarify guidance on the NEI 

supplementation procedure. 

To assist agencies that did not supply their own emissions data, TranSystems compiled a list of SCC/pollutant 

combinations in the state’s portion of the 2002 nonpoint source NEI that did not match to combinations in 

TranSystems default inventory. These lists were documented in an Excel workbook, which also contained a 

worksheet identifying associated inventory supplementation questions (e.g., “the 2002 NEI reports VOC emissions 

under Dry Cleaning/Perchloroethylene SCCs—TranSystems default inventory does not include VOC emissions for 

this SCC because perchloroethylene is no longer considered a VOC by EPA. Please confirm that VOC emissions 

from these SCCs should not be carried forward/grown”). After reviewing state agency responses to these data 

merging questions, TranSystems contacted agencies with follow-up questions as necessary to clarify state guidance. 
January 2012 

 35 Final Report 

Table II-13 displays the SCC/pollutant combinations for which 2002 nonpoint source NEI emissions were carried 

forward or grown to 2007 using growth factors from EGAS.14 Further documenting the data merging procedures are 

NIF EM table records and the SCC/county-level emission summaries that display a data source code for each record. 

Table II-14 presents the data source codes used to document the source of each area source emission record. The 

compiled inventory was converted into EPA’s NIF 3.0 nonpoint source file format.15 

 

14 Note that for some SCCs, EGAS did not provide growth factors. In these cases, Pechan used underlying EGAS 5.0 

information (i.e., the EGAS Version 5.0 SCC-to-growth indicator crosswalk and economic output data from version 5.5 of the 

Regional Economic Models, Inc. [REMI] model) to develop growth factors.

15 Pechan removed throughput data when 2002 nonpoint source NEI data were carried forward, 
36 

Table II-13. Summary of Data Carried Forward/Grown From 2002 NEI 

Source Classification Code Source Classification Code Description Alabama Florida Georgia1

KentuckyRest of 

State Mississippi 

Sou

Caro

2275085000 Aircraft/Unpaved Airstrips/Total EGAS EGAS 2275900000 Aircraft/Refueling: All Fuels/All Processes ** (Use 25-01-080-xxx) EGAS 2301030000 Chemical Manufacturing/Process Emissions from Pharmaceutical Manuf/Total Carry EGAS EGAS 2301040000 Chemical Manufacturing/Fugitive Emissions from Synthetic Organic Chem Manuf/Total Carry EGAS Carry 2302050000 Food & Kindred Products/Bakery Products/Total EGAS EGAS EGAS Carry EGA2302070005 Food & Kindred Products/Fermentation/Beverages/Wineries EGAS 2302070010 Food & Kindred Products/Fermentation/Beverages/Distilleries EGAS 2305070000 Mineral Processes/Concrete, Gypsum, Plaster Products/Total 2306000000 Petroleum Refining/All Processes/Total EGAS 2306010000 Petroleum Refining/Asphalt Paving/Roofing Materials/Total 2307060000 Wood Products/Misc Wood Products/Total 2308000000 Rubber/Plastics/All Processes/Total Carry 2309000000 Fabricated Metals/All Processes/Total 2309100010 Fabricated Metals/Coating, Engraving, and Allied Services/Electroplating 2309100230 Fabricated Metals/Coating, Engraving, and Allied Services/Alkaline Cleaning 2310000000 Oil & Gas Expl & Prod/All Processes/Total: All Processes EGAS Carry EGAS EGAS Carry 2325000000 Mining &Quarrying/All Processes/Total Carry EGAS EGAS EGAS EGA2399000000 Industrial Processes: NEC/Industrial Processes: NEC/Total EGAS Carry EGAS EGAS 2401001010 Surface Coating/Architectural Coatings/Primers, Sealers, and Undercoaters 2401001050 Surface Coating/Architectural Coatings/All Other Architectural Categories 2401005600 Surface Coating/Auto Refinishing/Primers 2401005700 Surface Coating/Auto Refinishing/Top Coats 2440000000 Misc Industrial/All Processes/Total: All Solvent Types Carry EGAS 2461800000 Misc Non-industrial: Commercial/Pesticide Applic.: All Processes/Total: All Solvent Types EGAS EGAS EGAS EGAS Carry EGA2461850000 Misc Non-indus: Consumer/Pesticide Application: Agricultural/All Processes EGAS EGAS Carry 
37 

Source Classification Code Source Classification Code Description Alabama Florida Georgia1

KentuckyRest of 

State Mississippi 

Sou

Caro

2465800000 Misc Non-indus: Consumer/Pesticide Application/Total: All Solvent Types EGAS 2501000090 Petrol & Petrol Product Storage/All Storage Types: Breathing Loss/Distillate Oil 2501050090 Petrol & Petrol Product Storage/Bulk Terminals: All Evaporative Losses/Distillate Oil 2501050150 Petrol & Petrol Product Storage/Bulk Terminals: All Evaporative Losses/Jet Naphtha 2501050180 Petrol & Petrol Product Storage/Bulk Terminals: All Evaporative Losses/Kerosene 2501070000 Diesel Service Stations/Total: All Products/All Processes EGAS 2501070051 Diesel Service Stations/Stage 1: Submerged Filling Carry 2501070052 Diesel Service Stations/Stage 1: Splash Filling 2501070101 Diesel Service Stations/Stage 2: Displacement Loss/Uncontrolled 2501070103 Diesel Service Stations/Stage 2: Spillage 2501070201 Diesel Service Stations/Underground Tank: Breathing and Emptying Carry 2510000000 Organic Chemical Storage/All Storage Types: Breathing Loss/Total: All Products 2530000020 Bulk Materials Storage/All Storage Types/Cement 2530000100 Bulk Materials Storage/All Storage Types/Limestone 2530000120 Bulk Materials Storage/All Storage Types/Sand 2530050000 Bulk Materials Storage/Bulk Stations/Terminals/Total: All Products 2601000000 On-site Incineration/All Categories/Total Carry 2601010000 On-site Incineration/Industrial/Total EGAS EGAS 2601020000 On-site Incineration/Commercial/Institutional/Total EGAS EGAS EGAS 2620000000 Landfills/All Categories/Total EGAS 2620030000 Landfills/Municipal/Total Carry EGAS 2630020000 Wastewater Treatment/Public Owned/Total Processed 2630020001 Wastewater Treatment/Public Owned/Flaring of Gases 2640000000 TSDFs/All TSDF Types/Total: All Processes EGAS EGAS EGAS EGAS 2660000000 Leaking Underground Storage Tanks/Leaking Underground Storage Tanks/Total: All Storage Types EGAS EGAS 2801000000 Agric - Crops/Total Carry EGAS Carry EGA
38 

Source Classification Code Source Classification Code Description Alabama Florida Georgia1

KentuckyRest of 

State Mississippi 

Sou

Caro

2801000003 Agric - Crops/Tilling Carry EGAS EGAS Carry EGA2805001000 Agric - Livestock/Beef cattle - finishing operations on feedlots (drylots)/Dust Kicked-up by Hooves EGAS EGAS EGA2810030000 Structure Fires/Unspecified Carry EGAS EGAS Carry EGA2810050000 Motor Vehicle Fires/Unspecified EGAS EGAS 2810060200 Cremation/Animals 2830000000 Catastrophic/Accidental Releases/All Catastrophic/Accidental Releases/Total Carry 2830001000 Catastrophic/Accidental Releases/Industrial Accidents/Total Carry 2841000040 Misc Repair Shops/Misc Repair Shops/Soldering Operations 1 TranSystems Default inventory for GA supplemented with EGAS-grown emissions from Georgia’s 2005 CERR submission.
January 2012 

 39 Final Report 

Table II-14. Area Source Inventory Data Source Codes 

Code Description 

P-07-X-NPT TranSystems default area source estimate 

P-07-X-PT TranSystems default total source estimate adjusted for point source activity (note that adjustment only 

occurred if emissions were reported in point source inventory). 

N-02-G 2002 nonpoint source NEI estimate grown using EGAS 

N-02-F 2002 nonpoint source NEI estimate carried forward (no growth) 

S-05-G 2005 Georgia area source CERR submission estimate grown using EGAS 

S-07-X State agency-supplied estimate 

L-07-X Local agency-supplied estimate 

L-07-X-VR Estimated from local agency VOC estimate and TranSystems default inventory derived ratio of 

pollutant emission factor to VOC emission factor. 

D. QA/QC PROCEDURES 

In addition to the quality assurance procedures that TranSystems performed on the revised final 2007 stationary area 

source inventory (e.g., running EPA’s NIF QA/Content Checker program to check for referential integrity issues, 

invalid entries, and out of typical range values), TranSystems quality assured all updates provided by S/L agencies to 

ensure that they were correctly incorporated into the final inventory, and reviewed the ratios of post-point source 

subtraction emissions to pre-point source subtraction emissions to confirm that these subtractions were properly 

implemented. 
January 2012 

 40 Final Report 

III. 2007 NONROAD MOBILE SOURCE INVENTORY 

The nonroad sector is comprised of nonroad engines included in EPA’s NONROAD model, as well as other engines 

not modeled in NONROAD, including aircraft, commercial marine vessels and locomotives. A 2007 nonroad sector 

inventory was developed using the following general procedures: 

 NONROAD model categories were based on the National Mobile Inventory Model (NMIM2008). SESARM 

agencies were asked to review the latest 2007 NMIM County Database and provide revisions as needed to 

the NMIM inputs. 

 The aircraft category was based on EPA’s 2008 NEI. The 2008 estimates were backcast to 2007, and any 

state comments were incorporated. 

 The commercial marine vessel category was based on EPA’s 2008 NEI, adjusted to 2007, and 

supplemented with any state emissions data. 

 The locomotive category was based on draft Class I and Class II/III line haul emissions, as well as draft 

railyard emissions developed by ERTAC. Passenger and commuter rail emissions were based on EPA’s 

2002 NEI. State emission estimates were also included. 

A more detailed description of how 2007 emissions estimates for all nonroad categories were prepared is provided 

below. 

A. NONROAD MODEL CATEGORIES 

NONROAD model categories include equipment such as recreational marine and land-based vehicles, farm, 

construction and industrial machinery, and lawn and garden equipment. These equipment are powered by 

compression-ignition engines, which are typically diesel-fueled, as well as spark-ignition or gasoline-fueled engines. 

Compressed natural gas (CNG) and LPG engines are also included in the NONROAD model. Criteria pollutant 

emissions may not be reported for all SCCs for all counties in the SESARM region, and will depend on the 

geographic allocation methods used by the model, or state-specific allocation data.

NMIM2008 incorporates EPA’s latest NONROAD model (NONROAD2008) released in April 2009, and reflects all of 

EPA’s final nonroad standards to date. TranSystems first distributed the 2007 year NMIM county-level database 

(NCD) to SESARM agencies for review and comment. TranSystems prepared a report to accompany nonroadrelated tables from the 2007 NCD providing instructions for agencies to provide any updates to these files that may 

represent S/L/T improvements to the NMIM/NONROAD defaults (Pechan, 2009c). A summary of the tables 

distributed and comments received from states is provided in Table III-1. 
January 2012 

 41 Final Report 

Table III-1. Summary of 2007 NCD Tables and State Comments 

NMIM Table Description Comments State(s) 

County County-specific variables Revised OzoneSeasonStartMonth and 

OzoneSeasonEndMonth 

AL, SC, VA 

 Update Barometric Pressure Jefferson County KY, VA 

CountyYearMonthHour Hourly temps and relative humidity 

by month and county 

Revised temperatures and relative humidity using NCDC 

data and EPA-prescribed methodology 

VA 

CountyNRFile External NONROAD data files Provided updates to SEASON.DAT file NC 

 Revised Underground Mining Cty Allocation File WV 

CountyYear Additional external data files (mostly 

onroad related) 

None 

CountyYearMonth Maps counties to monthly fuel data Revised county/monthly gasoline profile assignments GA, KY, Jefferson County

KY, NC, SC, 

Davidson County TN, VA 

Gasoline Gasoline fuel properties Revised/added gasoline fuel profiles GA, KY, Jefferson County 

KY, NC, SC, Davidson 

Cty TN, VA 

Diesel Diesel sulfur content Revised Diesel sulfur content Davidson County, TN 

Natural Gas Natural gas content None 

Further descriptions of the state data provided and how they were evaluated and used is provided below. 

CountyYearMonthHour Table 

Virginia provided revised temperatures and relative humidity using National Climatic Data Center (NCDC) data and 

the EPA-prescribed methodology for stretching hourly averages to capture daily minima and maxima values. 

CountyNR Table 

North Carolina provided an updated SEASON.DAT file (37000.sea) that changed the seasonal profile assignment for 

North Carolina from the default Mid-Atlantic region to the Southeast region. 

West Virginia provided an updated county allocation file for distributing activity and emissions related to underground 

mining equipment in their state. This revised county distribution was based on 2007 Underground Coal Production 

values as reported by the West Virginia’s Office of Miners' Health Safety and Training 2007 Coal Production by 

County. 

CountyYearMonth, Gasoline, and Diesel Tables 

Several states provided revised fuel profile assignments by county, as reflected in changes to the CountyYearMonth 

table. In many cases, this also involved the creation of new gasoline profiles in the Gasoline table. The revisions 

submitted primarily related to changes by month for Reid Vapor Pressure (RVP) values as well as gasoline sulfur 

content. Updates to the oxygenated fuel data were provided for some states as well. 

Some states also revised the diesel fuel sulfur content values for 2007. For regional consistency, unless the values 

were based on actual testing that reflected the diesel sulfur content in use for an area, the NMIM default values of 

1218 parts per million (ppm) for land-based equipment 1389 ppm for recreational marine were retained. 

Once the inputs to NMIM/NONROAD were quality assured, TranSystems ran NMIM to generate 2007 annual 

emission estimates for all SESARM states for all nonroad SCCs. Emissions from aircraft ground support equipment 

are now entirely addressed by the aircraft sector inventory (see discussion under Section III.B of this report). 
January 2012 

 42 Final Report 

TranSystems removed emission estimates from the NMIM output for the airport GSE SCCs (i.e., SCCs 2265008005, 

2267008005, and 2270008005). 

B. AIRCRAFT 

Airport-related emission estimates were developed for the following SCCs listed in Table III-2. 

Table III-2. Aircraft Source Classification Codes 

Description SCC 

Military Aircraft 2275001000 

Commercial Aircraft 2275020000 

General Aviation - Piston 2275050011 

General Aviation - Turbine 2275050012 

Air Taxi - Piston 2275060011 

Air Taxi - Turbine 2275060012 

Auxiliary Power Unit (APU) 2275070000 

4-Stroke Gasoline GSE 2265008005 

LPG GSE 2267008005 

CNG GSE 2268008005 

Diesel GSE 2270008005 

2007 aircraft emissions were primarily based on EPA’s 2008 NEI. The procedures and data for developing aircraft 

emissions are described in further detail in EPA’s 2008 NEI documentation (ERG, 2009a). 

For commercial aircraft, the emission estimation methodology relied on airport and aircraft-specific landing and takeoff (LTO) data, coupled with mode and aircraft-specific emission rates from the FAA’s Emission and Dispersion 

Modeling System (EDMS). Emissions for ground support equipment (GSE) and auxiliary power units (APUs) 

associated with commercial air carriers were estimated by EDMS, using operating time defaults based on the type of 

service performed. LTO data for general aviation and air taxi were obtained from FAA’s Terminal Area Forecasts 

(TAF) and 5010 Forms. This activity was assigned to jet and propeller-driven fractions, and fleet-average emission 

factors were then applied. Finally, military aircraft activity at civilian and commercial airports was obtained by EPA 

from FAA’s TAF, and these emissions (with a few noted exceptions) were largely included in the 2007 SEMAP. 

Unless provided by a state or local agency (e.g., Georgia, North Carolina, and Virginia), military aircraft activity and 

emissions occurring at military facility bases are not accounted for in the SEMAP inventory. 

The 2008 emissions and LTO data were back-cast to 2007 using approach operations by airport and aircraft type 

compiled from the FAA’s Air Traffic Activity Data System (ATADS) (FAA, 2010). The airport-level LTOs were 

assigned to counties and summed for the county. For counties with aircraft emissions without a county match in 

ATADS, state average growth factors were calculated and applied. The county-level growth factors are not 

presented in this report, but could be provided to SESARM if requested. The 2007 to 2008 growth factors were 

developed for each of the six airport source categories. Commercial aircraft, APU, and GSE categories relied on 

growth factors calculated from commercial air carrier LTOs. General aviation and air taxi were grown using LTO data 

reported for these specific aviation categories. Military aircraft were held constant from 2008 to 2007. 

State-supplied data are summarized in Table III-3. Comments from Alabama, Georgia, and Davidson County, 

Tennessee related to removing non-operational airports, correcting county assignments for individual airports, or 
January 2012 

 43 Final Report 

updating emissions for specific commercial airports. Georgia, North Carolina, and Virginia submitted military aircraft 

emissions for military bases in their state. In addition, North Carolina provided emissions for military aircraft activity 

at commercial airports, and also provided diesel GSE emissions associated with all military aircraft. Note that for 

several North Carolina facilities, EPA had already reported diesel GSE emissions associated with commercial aircraft 

activity, so state-provided diesel GSE emissions were added to these existing EPA estimates at the SCC level. 

Table III-3. Summary of State Updates to Aircraft Category Emissions 

State/County SCC SCC Description Pollutants Comments 

Alabama 2275050011 General Aviation Piston All Removed emissions for 1 non-operational airport; 1 airport in 

GA incorrectly assigned to AL county 

 2275050012 General Aviation Turbine 

Georgia 2275001000 Military Aircraft All Updated emissions for Dobbins Air Reserve Base 

 2275007000 Auxiliary Power Unit (APU) All Updated emissions for Dobbins Air Reserve Base 

 2275050011 General Aviation Piston All Made revisions to county assignments for 2 airports 

 2275050012 General Aviation Turbine 

 All SCCs See Table III-2 All Updated emissions for Atlanta Hartsfield Airport 

North Carolina 2275001000 Military Aircraft All Added military aircraft emissions at military bases and civilian 

airports 

 2270008005 Diesel Airport GSE 

Davidson County, TN 2275050011 General Aviation Piston All Removed emissions for 4 non-operational airports; reassigned 

1 airport from Davidson to Rutherford County 

 2275050012 General Aviation Turbine 

 2275020000 Commercial Aircraft All Updated emissions for Nashville International Airport 

 2265008005 Gasoline Airport GSE All Updated emissions for Nashville International Airport 

 2270008005 Diesel Airport GSE All Updated emissions for Nashville International Airport 

Virginia 2275001000 Military Aircraft All but PM10, PM-2.5, 

SO2 

Added military aircraft emissions for 15 military bases 

North Carolina and Georgia provided estimates for all needed pollutants, and Virginia provided estimates for all 

pollutants, with some exceptions for PM-10 and PM-2.5. Where PM-10 was provided by Virginia for two facilities, we 

estimated PM-2.5 using a particle size multiplier of 0.669, from Table “Military Aircraft Emission Factors” in Appendix 

A to EPA 2008 NEI documentation (ERG, 2009a). PM and SO2 emissions for the remaining military facilities in 

Virginia were not estimated. 

C. COMMERCIAL MARINE VESSELS 

Commercial marine vessel emissions are reported under the following SCCs: 

 2280002100 – Diesel, In Port 

 2280002200 – Diesel, Underway 

 2280003100 – Residual, In Port 

 2280003200 – Residual, Underway 

For the purpose of the NEI it was assumed that Category 1 and 2 vessels typically use distillate fuels, while 

Category 3 vessels primarily use residual blends. Category 3 engines are defined as having displacement above 

30 liters per cylinder. 
January 2012 

 44 Final Report 

2007 CMV emissions were based largely on EPA’s 2008 NEI. For Category 1 and 2 engines, national diesel 

emissions, based on national 2008 fuel sales, were split into near-shore port and underway components. Port 

emissions were assigned to 150 largest ports using port traffic data per Waterborne Commerce of the U.S. For the 

county allocation procedure, EPA developed a GIS shape file library based on Bureau of Transportation data to more 

precisely assign port emissions to counties, and to better allocate underway emissions to line segments/counties. 

This represents an improvement to the spatial allocation procedure used for previous versions of the NEI. 

2008 Category 3 CMV estimates were projected from a 2002 hourly modeling inventory developed by EPA’s Office of 

Transportation and Air Quality (OTAQ), and aggregated to an annual basis for the NEI. EPA developed Category 3 

inventories for a total of 117 deep sea and inland ports, accounting for 4 different types of near-port emissions, 

including hotelling, maneuvering, reduced-speed zone, and cruise mode. EPA spatially allocated emissions using 

GIS shapefiles to specify the geographic locations for each type of near port emissions. Additional details concerning 

the methodologies are described in EPA’s 2008 NEI documentation (ERG, 2009b). 

The 2008 CMV estimates were then adjusted to represent 2007. For Category 1 & 2 diesel commercial marine 

vessels, 2007 emissions were estimated by applying growth factors to the 2008 emissions. National 2007 and 2008 

emissions, by pollutant, were used to estimate the growth factors (EPA, 2008a). Emissions were adjusted at a 

national level because the surrogate data used to estimate county-level emissions for the 2008 NEI actually 

represent year 2007. Table III-4 shows the growth factors, by pollutant. The PM10-PRI and PM25-PRI growth factor 

value was also used for NH3. 

Table III-4. Category 1 & CMV Growth Factors, by Pollutant 

Pollutant Growth Factor 

CO 1.009 

NH3 1.045 

NOx 1.016 

PM10-PRI 1.045 

PM25-PRI 1.045 

SO2 1.110 

VOC 1.008 

To estimate 2007 emissions for Category 3 residual commercial marine vessels, an annual average regional growth 

rate was applied as a corresponding decrease to the 2008 NEI emissions (EPA, 2008b). A correspondence was 

developed between the SESARM states and available regional growth rates for the East Coast and Gulf Coast. 

Table III-5 contains this correspondence along with the growth factor. Counties in the State of Florida were assigned 

to the two regions as appropriate. 
January 2012 

 45 Final Report 

Table III-5. Category 3 CMV Growth Factors, by State and SCC 

FIPSST State SCC Region GF 

01 AL 2280003100 Gulf Coast 0.955 

01 AL 2280003200 Gulf Coast 0.955 

12 FL 2280003100 Gulf Coast 0.955 

12 FL 2280003200 Gulf Coast 0.955 

12 FL 2280003100 East Coast 0.971 

12 FL 2280003200 East Coast 0.971 

13 GA 2280003100 East Coast 0.971 

13 GA 2280003200 East Coast 0.971 

21 KY 2280003100 East Coast 0.971 

21 KY 2280003200 East Coast 0.971 

28 MS 2280003100 Gulf Coast 0.955 

28 MS 2280003200 Gulf Coast 0.955 

37 NC 2280003100 East Coast 0.971 

37 NC 2280003200 East Coast 0.971 

45 SC 2280003100 East Coast 0.971 

45 SC 2280003200 East Coast 0.971 

47 TN 2280003100 East Coast 0.971 

47 TN 2280003200 East Coast 0.971 

51 VA 2280003100 East Coast 0.971 

51 VA 2280003200 East Coast 0.971 

54 WV 2280003100 East Coast 0.971 

54 WV 2280003200 East Coast 0.971 

State provided data are listed in Table III-6. South Carolina provided a county-level inventory for the port of 

Charleston for 2005. The 2005 estimates were grown to 2007 using Army Corps of Engineers data on total 

commodity tonnage handled at the Port of Charleston (ACE, 2010). Davidson County provided a county-level CMV 

inventory reported under the general SCC 2280000000. Finally, Virginia also provided a military marine emissions 

inventory, with the exclusion of Coast Guard Vessels, since activity for these ships should be captured by EPA’s 

Category 1 & 2 inventory. The port and underway components of Virginia’s marine inventory were assigned to the 

Residual, In Port and Residual, Underway SCCs, respectively. In counties where EPA had already reported residual 

port or underway emissions, state-provided military marine emissions were added to these existing EPA estimates at 

the SCC level. Any necessary pollutant augmentation is described in Table III-6.
46 

Table III-6. Summary of State Updates to Commercial Marine Category Emissions 

State/County SCC SCC Description Pollutants Comments Additional Revisions ‌Charleston County, SC 

2280002100 Category 1&2 Residual 

Port 

All but NH3 Removed NEI emissions and added SC supplied emissions 

for Charleston County, SC. 

NH3 estimated using PM

 2280002200 Category 1&2 Residual 

Underway 

All but NH3 NH3 estimated using the 

for the particular County

 2280003100 Category 3 Diesel Port All but NH3 NH3 estimated using PM 2280003200 Category 3 Diesel 

Underway 

All but NH3 NH3 estimated using the 

for the particular County

Davidson County, TN 

2280000000 All Commercial Marine All but PM-10, PM-25 

and NH3

Removed all CMV NEI emissions for Davidson County, TN and added emissions supplied by the county. 

PM-10 estimated using consumption (provided PM-25 estimated using NH3 estimated using PM

Shelby County, TN 

2280002100 Category 1&2 Residual 

Port 

All Replaced CMV NEI emissions for Shelby 

County, TN with emissions supplied by the county. 

 2280002200 Category 1&2 Residual 

Underway 

All but NH3 Relied on EPA NEI NH3 

Virginia 2280003100 Category 3 Diesel Port All but VOC, PM-25, 

and NH3

Added military marine emissions VOC estimated using H

PM-25 estimated using NH3 estimated using ra

the particular County/SC

 2280003200 Category 3 Diesel 

Underway 

All but VOC, PM-25, and NH3

 VOC estimated using H

PM-25 estimated using NH3 estimated using ra

the particular County/SC
January 2012 

 47 Final Report 

D. LOCOMOTIVES 

Locomotive emissions are reported under the following SCCs: 

 2285002006 – Diesel Class I Line Haul 

 2285002007 – Diesel Class II/III Line Haul 

 2285002008 – Diesel Passenger (Amtrak) 

 2285002009 – Diesel Commuter 

 2285002010 – Diesel Switchyard Locomotives 

Class I line haul operations typically account for the majority of fuel consumed and emissions when preparing 

locomotive inventories. As such, resources should be focused on developing emission estimates for these 

operations relative to other rail-related operations. However, for some local areas, certain operations related to 

switchyard activity may also be important. 

For Class I line-haul locomotives, emissions are normally calculated by multiplying the amount of fuel consumed in 

the inventory area by pollutant-specific emission factors. This calculation is performed for each railroad. The results 

for each railroad are then summed to obtain the total Class I railroad emissions in the inventory area.

For Class I line haul, TranSystems obtained 2007 emission estimates from the Eastern Regional Technical Advisory 

Committee (ERTAC, 2010a). ERTAC used the Federal Railroad Administration’s GIS data to construct a dataset of 

link-level million gross tons per mile (MGT). Next the Railroad Fuel Consumption Index (RFCI) value was calculated 

for each railroad, which represents the number of GTM produced per gallon of diesel fuel. When applied to each 

link’s GTM per year, link-based fuel consumption can be calculated. This methodology allows for a more accurate 

reflection of how GTM are actually concentrated across rail line route miles. Finally, the fuel consumed is multiplied 

by the various emission factors derived for each Class I rail line to determine link-level emissions for each pollutant. 

An important aspect is determining the fraction of locomotives that fall under each regulatory “Tier,” since each Tier 

has an increasingly stringent emission rate for pollutants of concern. 

A limitation of the link-level MGT data maintained by the FRA is that the data are proprietary and can only be publicly 

released with the express permission of each Class I railroad. In addition, when the FRA coded the link-level MGT 

data they did not provide a means for separating out individual MGT contributions for links that are operated by 

multiple railroad companies. As such, some assumptions were made for these contributions by ERTAC. 

Class II/III line haul emissions were also developed and distributed by ERTAC (ERTAC, 2010b). Limited 

documentation has been developed to describe the procedures used by ERTAC to develop this inventory. Generally, 

fuel consumption for all Class II/III railroads was obtained from the American Shortline and Regional Railroad 

Association and assigned to counties using route miles by rail line within each county. An average fuel use factor 

expressed in gallons per mile was then multiplied by the route miles to estimate fuel consumption by railroad and by 

county. Class II/III locomotives were all assumed to be uncontrolled with respect to emission rates used for 

estimating pollutant emissions. Class II/III rail emissions represent calendar year 2008, and as such were back-cast 

to 2007 using a surrogate growth indicator. A SESARM regional growth factor of 1.438 was developed using 2007 

and 2008 total distillate fuel sales/deliveries to railroad consumers which were obtained from the DOE Energy 

Information Administration State Energy Data (DOE, 2009a). 

Passenger and commuter rail line emissions from EPA’s 2002 NEI were grown to 2007. For both categories, the 

growth factor was developed using 2002 and 2007 passenger/commuter fuel use data obtained from the DOE 

Transportation Energy Data Book (DOE, 2009b). For passenger rail operations, the growth factor value was 0.732. 

For commuter rail operations, a growth factor of 1.11 was used. 
January 2012 

 48 Final Report 

Finally, a switchyard inventory was completed by ERTAC on June 4, 2010 (ERTAC, 2010c). This inventory was 

compiled at a railyard level by ERTAC, but was summed to a county level for use in the SEMAP 2007 inventory. In 

general, switcher emissions were estimated using total switcher fuel consumption available from each Class I R-1 

report allocated to railyards based on average density code data reported by the Federal Railroad Administration. 

Documentation describing the specific methodology and data sources used will be forthcoming from ERTAC. 

Some state data were provided for the locomotive category. These data are summarized in Table III-7. North 

Carolina provided a statewide passenger rail inventory for 2007. Davidson County provided a county level inventory 

comprised of Class I line haul and switchyard activity, reported under the general SCC 2285000000. Shelby County 

provided an updated Class I line haul, passenger, and yard locomotive inventory for most pollutants. Any needed 

pollutant augmentation is described in Table III-7. 

E. QA/QC PROCEDURES 

TranSystems performed the following quality assurance procedures on the final 2007 nonroad sector inventory. 

For the NONROAD/NMIM categories, TranSystems quality assured all NCD updates provided by states to ensure 

consistency with the NCD formats, and for reasonableness. Where questions came up, we coordinated with the 

appropriate S/L agency. Cross-checks were performed to confirm that state-supplied revisions were correctly 

incorporated into the NCD. TranSystems compared results with 2007 emission estimates prepared by EPA using a 

prior version of the NCD. These comparisons were performed to ensure that results changed as expected given the 

updates made by specific states to the NMIM inputs. 
49 

Table III-7. Summary of State Updates to Locomotive Category Emissions 

State SCC SCC Description Pollutants Comments AddNorth Carolina 2285002008 Line Haul Locomotives: Passenger 

Trains (Amtrak) 

All but NH3 Replaced NEI passenger emissions with 

NC supplied emissions 

NH3 200for t

 2285002007 Line Haul Locomotives: Class II/III 

Locomotives 

All Removed activity/emissions for several rail 

lines 

Davidson County, TN 2285000000 All Railroad All Fuels All but PM-25 

and NH3

Replaced ERTAC rail emissions with Davidson County supplied emissions 

PM-multNH3 

NEI 

part

Shelby County, TN 2285002006 Line Haul Locomotives: Class I 

Operations 

All but PM-25 and NH3

Replaced ERTAC rail emissions with Shelby County supplied emissions 

Relimiss

 2285002008 Line Haul Locomotives: Passenger 

Trains (Amtrak) 

All but NH3 Reli

emis

 2285002010 Yard Locomotives All 
January 2012 

 50 Final Report 

TranSystems compiled records for the SESARM region from EPA’s NEI for aircraft, CMV, and passenger/commuter 

rail, and obtained Class I and Class II/III line haul, and railyard emission estimates from ERTAC. TranSystems 

performed and quality assured any needed adjustments to year 2007 (i.e., correct application of growth or backcast 

factors). Cross-checks were also performed to verify that state-supplied emission estimates were correctly 

incorporated into the draft inventory. TranSystems also calculated missing pollutants for SCC-level state emission 

estimates, where emission factors or emission ratios were available. 

Emission estimates were converted into EPA’s NIF3.0 as a final deliverable. For the NMIM categories, commercial 

marine, and locomotive, separate database files were prepared for each subsector following EPA’s NIF3.0 nonpoint 

format. Aircraft emission estimates were prepared in EPA’s NIF3.0 point source format. EPA’s NIF QA Checker 

program was then run on these final files, and any referential integrity issues and invalid codes were identified and 

corrected. Finally, data source codes as described in Table III-8 were added to the NIF3.0 files to represent the 

source of the SCC, county-level emissions data for the final inventory.

Table III-8. Data Source Codes Used for Revised Final 2007 Nonroad Mobile Emission Estimates 

Code Description 

P-07-X TranSystems default 

N-02-G 2002 NEI grown 

S-07-X State supplied 

S-07-X-PS State supplied added to TranSystems default 

S-05-G State supplied 2005 grown 

L-07-X Local agency supplied 
January 2012 

 51 Final Report 

IV. EMISSIONS SUMMARIES 

This section presents the emission summaries for the revised final 2007 stationary area and nonroad mobile 

emissions inventory for the SEMAP project. In addition to the summaries provided in this section, TranSystems has 

also provided SESARM with detailed county-level emission summaries in Excel worksheets. 

A. STATIONARY AREA SOURCE EMISSIONS 

Table IV-1 provides a summary of the final 2007 SESARM area source emissions inventory by the four major area 

source subsectors. Table IV-2 displays final area source emission estimates by state, as well as the percent 

contribution of each state to total regional emissions. Similar summaries providing 2007 annual state-level emission 

estimates for each major area source sector, as well as percent contributions by state, are shown in Tables IV-3 

through IV-6. 

Table IV-1. Final 2007 SESARM Area Source Emissions by Major Sector 

Pollutant Emissions, TPY 

Category SO2 NOx VOC PM10-PRI PM2.5-PRI CO NH3

Combustion 81,876 105,283 28,444 95,946 69,362 273,557 7,901 

Solvents 712,961 24 4 0.1 

Fugitive Dust 2,311,660 242,976 

All Other 2,905 11,807 433,868 299,768 109,872 157,631 576,975 

All Nonpoint 84,782 117,090 1,175,273 2,707,398 422,214 431,188 584,876 
January 2012 

 52 Final Report 

Table IV-2. Final 2007 Area Source Emission Estimates by State 

Pollutant Emissions, TPY 

State SO2 NOx VOC PM10-PRI PM2.5-PRI CO NH3

Alabama 431 3,940 79,030 349,981 41,587 15,152 62,426 

Florida 11,203 13,014 296,131 340,693 55,515 43,381 33,940 

Georgia 4,858 25,552 143,469 652,757 95,801 83,246 86,544 

Kentucky 15,590 12,693 75,100 226,829 40,341 55,450 52,332 

Mississippi 344 6,091 74,755 326,350 42,758 22,377 58,774 

North Carolina 8,365 12,715 152,825 51,678 16,829 47,379 169,440 

South Carolina 6,048 9,353 76,838 266,749 39,538 32,208 30,248 

Tennessee 14,415 12,418 111,100 215,667 33,948 44,668 35,277 

Virginia 17,022 17,740 133,935 176,265 39,034 63,838 43,038 

West Virginia 6,504 3,574 32,089 100,429 16,862 23,490 12,858 

Total SESARM 84,782 117,090 1,175,273 2,707,398 422,214 431,188 584,876 

 

Percentage of Regional Total 

State SO2 NOx VOC PM10-PRI PM2.5-PRI CO NH3

Alabama 0.5 3.4 6.7 12.9 9.8 3.5 10.7 

Florida 13.2 11.1 25.2 12.6 13.1 10.1 5.8 

Georgia 5.7 21.8 12.2 24.1 22.7 19.3 14.8 

Kentucky 18.4 10.8 6.4 8.4 9.6 12.9 8.9 

Mississippi 0.4 5.2 6.4 12.1 10.1 5.2 10.0 

North Carolina 9.9 10.9 13.0 1.9 4.0 11.0 29.0 

South Carolina 7.1 8.0 6.5 9.9 9.4 7.5 5.2 

Tennessee 17.0 10.6 9.5 8.0 8.0 10.4 6.0 

Virginia 20.1 15.2 11.4 6.5 9.2 14.8 7.4 

West Virginia 7.7 3.1 2.7 3.7 4.0 5.4 2.2 

Total SESARM 100 100 100 100 100 100 100 
January 2012 

 53 Final Report 

Table IV-3. Final 2007 Combustion Emission Estimates by State 

Pollutant Emissions, TPY 

State SO2 NOx VOC PM10-PRI PM2.5-PRI CO NH3

Alabama 376 3,490 1,903 1,400 1,391 11,257 449 

Florida 11,032 12,163 2,421 27,419 19,713 29,097 585 

Georgia 4,528 23,648 2,751 14,118 14,092 59,474 1,851 

Kentucky 15,250 11,287 3,892 13,006 8,573 31,102 670 

Mississippi 206 5,274 1,238 1,074 1,043 9,933 307 

North Carolina 8,090 11,534 4,313 4,795 4,394 29,963 910 

South Carolina 5,900 8,480 1,743 10,510 7,926 18,699 427 

Tennessee 14,058 10,853 2,929 12,756 2,521 25,816 833 

Virginia 16,061 15,569 5,270 8,142 7,358 43,205 1,443 

West Virginia 6,376 2,985 1,984 2,728 2,354 15,012 424 

Total SESARM 81,876 105,283 28,444 95,946 69,362 273,557 7,901 

 

Percentage of Regional Total 

State SO2 NOx VOC PM10-PRI PM2.5-PRI CO NH3

Alabama 0.5 3.3 6.7 1.5 2.0 4.1 5.7 

Florida 13.5 11.6 8.5 28.6 28.4 10.6 7.4 

Georgia 5.5 22.5 9.7 14.7 20.3 21.7 23.4 

Kentucky 18.6 10.7 13.7 13.6 12.4 11.4 8.5 

Mississippi 0.3 5.0 4.4 1.1 1.5 3.6 3.9 

North Carolina 9.9 11.0 15.2 5.0 6.3 11.0 11.5 

South Carolina 7.2 8.1 6.1 11.0 11.4 6.8 5.4 

Tennessee 17.2 10.3 10.3 13.3 3.6 9.4 10.5 

Virginia 19.6 14.8 18.5 8.5 10.6 15.8 18.3 

West Virginia 7.8 2.8 7.0 2.8 3.4 5.5 5.4 

Total SESARM 100 100 100 100 100 100 100 
January 2012 

 54 Final Report 

Table IV-4. Final 2007 Solvent Emission Estimates by State 

Pollutant Emissions, TPY 

State SO2 NOx VOC PM10-PRI PM2.5-PRI CO NH3

Alabama 54,760 

Florida 164,244 

Georgia 86,349 

Kentucky 45,697 1 1 

Mississippi 42,797 

North Carolina 113,623 0.1 

South Carolina 38,952 

Tennessee 63,279 22 4 

Virginia 89,798 

West Virginia 13,463 

Total SESARM 712,961 24 4 0.1 

 

Percentage of Regional Total 

State SO2 NOx VOC PM10-PRI PM2.5-PRI CO NH3

Alabama 7.7 0.0 0.0 0.0 

Florida 23.0 0.0 0.0 0.0 

Georgia 12.1 0.0 0.0 0.0 

Kentucky 6.4 5.0 16.5 0.0 

Mississippi 6.0 0.0 0.0 0.0 

North Carolina 15.9 0.0 0.0 100.0 

South Carolina 5.5 0.0 0.0 0.0 

Tennessee 8.9 95.0 83.5 0.0 

Virginia 12.6 0.0 0.0 0.0 

West Virginia 1.9 0.0 0.0 0.0 

Total SESARM 100 100 100 100 
January 2012 

 55 Final Report 

Table IV-5. Final 2007 Fugitive Dust Emission Estimates by State 

Pollutant Emissions, TPY 

State SO2 NOx VOC PM10-PRI PM2.5-PRI CO NH3

Alabama 318,858 33,717 

Florida 270,262 22,325 

Georgia 580,492 62,104 

Kentucky 184,551 19,979 

Mississippi 301,642 32,897 

North Carolina 37,467 3,722 

South Carolina 235,508 23,304 

Tennessee 176,850 19,521 

Virginia 134,014 18,730 

West Virginia 72,018 6,676 

Total SESARM 2,311,660 242,976 

 

Percentage of Regional Total 

State SO2 NOx VOC PM10-PRI PM2.5-PRI CO NH3

Alabama 13.8 13.9 

Florida 11.7 9.2 

Georgia 25.1 25.6 

Kentucky 8.0 8.2 

Mississippi 13.0 13.5 

North Carolina 1.6 1.5 

South Carolina 10.2 9.6 

Tennessee 7.7 8.0 

Virginia 5.8 7.7 

West Virginia 3.1 2.7 

Total SESARM 100 100 
January 2012 

 56 Final Report 

Table IV-6. Final 2007 All Other Area Source Emission Estimates by State 

Pollutant Emissions, TPY 

State SO2 NOx VOC PM10-PRI PM2.5-PRI CO NH3

Alabama 56 450 22,368 29,724 6,480 3,895 61,977 

Florida 171 851 129,465 43,012 13,477 14,285 33,355 

Georgia 331 1,903 54,369 58,148 19,605 23,771 84,693 

Kentucky 340 1,406 25,512 29,271 11,789 24,347 51,662 

Mississippi 138 817 30,720 23,634 8,819 12,445 58,467 

North Carolina 276 1,181 34,888 9,417 8,713 17,416 168,530 

South Carolina 147 873 36,143 20,732 8,308 13,508 29,820 

Tennessee 357 1,565 44,892 26,039 11,903 18,852 34,444 

Virginia 961 2,172 38,867 34,109 12,946 20,633 41,594 

West Virginia 128 589 16,643 25,683 7,833 8,478 12,433 

Total SESARM 2,905 11,807 433,868 299,768 109,872 157,631 576,975 

 

Percentage of Regional Total 

State SO2 NOx VOC PM10-PRI PM2.5-PRI CO NH3

Alabama 1.9 3.8 5.2 9.9 5.9 2.5 10.7 

Florida 5.9 7.2 29.8 14.3 12.3 9.1 5.8 

Georgia 11.4 16.1 12.5 19.4 17.8 15.1 14.7 

Kentucky 11.7 11.9 5.9 9.8 10.7 15.4 9.0 

Mississippi 4.8 6.9 7.1 7.9 8.0 7.9 10.1 

North Carolina 9.5 10.0 8.0 3.1 7.9 11.0 29.2 

South Carolina 5.1 7.4 8.3 6.9 7.6 8.6 5.2 

Tennessee 12.3 13.3 10.3 8.7 10.8 12.0 6.0 

Virginia 33.1 18.4 9.0 11.4 11.8 13.1 7.2 

West Virginia 4.4 5.0 3.8 8.6 7.1 5.4 2.2 

Total SESARM 100 100 100 100 100 100 100 

B. NONROAD MOBILE SOURCE EMISSIONS 

Table IV-7 provides a summary of final 2007 nonroad mobile annual emissions by the four major nonroad subsectors 

for the SESARM region. PM-10 and PM-2.5 emissions represent primary PM, and are reported as PM10-PRI, and 

PM25-PRI. The commercial marine category is the most significant contributor regionally to SO2 emissions. 

Nonroad model categories account for the large majority of emissions for NOx, VOC, PM10-PRI, PM25-PRI, and CO. 

Table IV-8 presents a summary of the final annual NONROAD model emission estimates by state, as well as the 

percent contribution of each state to total regional emissions. Similar summaries providing 2007 annual state-level 

emission estimates for aircraft, commercial marine, and locomotives, as well as the percent contributions, are shown 

in Tables IV-9, IV-10, and IV-11, respectively. 

Since development of the draft inventory, locomotive switchyard emissions developed by ERTAC have been added. 

These emission estimates were developed at a railyard level, and summed to the county level for the 2007 SEMAP 

inventory. As mentioned in Section III.D, we are providing an electronic file that provides emissions at a railyard 

level, so that SESARM agencies can review the data that form the basis of the county-level estimates, and make any 

needed revisions. In addition, for the aircraft category, EPA made some additions to the 2008 military aircraft NEI 

that formed the basis of the initial draft SEMAP inventory. As discussed in Section III.B, we are distributing an 
January 2012 

 57 Final Report 

electronic file showing additional emission records calculated by EPA for military aircraft by airport for the SESARM 

region. Agencies should provide feedback as to whether these records should be added to their inventory. 

Table IV-7. Final 2007 SESARM Nonroad Source Emissions by Major Sector 

Pollutant Emissions, tons per year Category SO2 NOx VOC PM10-PRI PM25-PRI CO NH3

NONROAD Model 23,308 404,580 629,693 41,489 39,517 4,642,050 447 

Aircraft 3,105 32,153 18,444 4,066 3,037 196,823 NA 

Commercial Marine 33,715 162,801 4,516 7,869 7,462 28,726 86 

Locomotive 2,178 155,025 8,285 5,085 4,693 21,633 67 

All Nonroad 62,307 754,560 660,938 58,508 54,709 4,889,232 601 

Table IV-8. Final 2007 NONROAD Model Emission Estimates by State 

Pollutant Emissions, tons per year State SO2 NOx VOC PM10-PRI PM25-PRI CO NH3

Alabama 1,483 26,695 49,956 2,806 2,665 316,138 30 

Florida 6,714 109,218 193,974 11,543 10,986 1,431,464 134 

Georgia 3,079 51,524 69,914 5,315 5,067 629,419 56 

Kentucky 1,630 28,665 36,641 2,877 2,749 240,397 28 

Mississippi 1,147 20,050 33,760 2,126 2,025 187,258 21 

North Carolina 3,111 55,743 76,568 5,434 5,181 597,360 58 

South Carolina 1,522 26,742 42,293 2,661 2,534 328,606 29 

Tennessee 1,884 36,756 54,089 3,637 3,467 388,496 38 

Virginia 2,329 41,658 55,164 4,132 3,937 416,303 45 

West Virginia 410 7,529 17,333 957 905 106,610 9 

Total SESARM 23,308 404,091 630,621 41,489 39,517 4,674,012 447 

 

Percentage of Regional Total State SO2 NOx VOC PM10-PRI PM25-PRI CO NH3

Alabama 6.4 6.6 7.9 6.8 6.7 6.8 6.7 

Florida 28.8 27.0 30.8 27.8 27.8 30.8 29.9 

Georgia 13.2 12.7 11.1 12.8 12.8 13.6 12.6 

Kentucky 7.0 7.1 5.8 6.9 7.0 5.2 6.2 

Mississippi 4.9 5.0 5.4 5.1 5.1 4.0 4.7 

North Carolina 13.3 13.8 12.2 13.1 13.1 12.9 13.0 

South Carolina 6.5 6.6 6.7 6.4 6.4 7.1 6.6 

Tennessee 8.1 9.1 8.6 8.8 8.8 8.4 8.4 

Virginia 10.0 10.3 8.8 10.0 10.0 9.0 10.0 

West Virginia 1.8 1.9 2.8 2.3 2.3 2.3 2.0 

Total SESARM 100 100 100 100 100 100 100 
January 2012 

 58 Final Report 

Table IV-9. Final 2007 Aircraft Emission Estimates by State 

Pollutant Emissions, tons per year State SO2 NOx VOC PM10-PRI PM25-PRI CO 

Alabama 51 440 891 294 205 14,778 

Florida 992 10,746 5,060 1,028 772 57,332 

Georgia 608 4,909 2,771 433 346 28,082 

Kentucky 219 2,257 918 204 154 11,555 

Mississippi 26 219 665 168 117 8,520 

North Carolina 370 3,499 2,487 521 423 22,482 

South Carolina 68 586 930 210 149 11,117 

Tennessee 354 4,054 1,623 292 227 16,318 

Virginia 410 5,385 2,842 844 594 23,032 

West Virginia 7 59 257 72 50 3,607 

Total SESARM 3,105 32,153 18,444 4,066 3,037 196,823 

 

Percentage of Regional Total State SO2 NOx VOC PM10-PRI PM25-PRI CO 

Alabama 1.6 1.4 4.8 7.2 6.8 7.5 

Florida 32.0 33.4 27.4 25.3 25.4 29.1 

Georgia 19.6 15.3 15.0 10.7 11.4 14.3 

Kentucky 7.1 7.0 5.0 5.0 5.1 5.9 

Mississippi 0.8 0.7 3.6 4.1 3.9 4.3 

North Carolina 11.9 10.9 13.5 12.8 13.9 11.4 

South Carolina 2.2 1.8 5.0 5.2 4.9 5.6 

Tennessee 11.4 12.6 8.8 7.2 7.5 8.3 

Virginia 13.2 16.7 15.4 20.8 19.6 11.7 

West Virginia 0.2 0.2 1.4 1.8 1.6 1.8 

Total SESARM 100 100 100 100 100 100 
January 2012 

 59 Final Report 

Table IV-10. Final 2007 Commercial Marine Vessel Emission Estimates by State 

Pollutant Emissions, tons per year State SO2 NOx VOC PM10-PRI PM25-PRI CO NH3

Alabama 1,739 18,554 411 726 699 3,723 8 

Florida 18,146 48,271 1,261 2,971 2,778 7,014 29 

Georgia 2,044 10,582 257 476 456 1,845 5 

Kentucky 1,015 15,726 338 576 558 3,009 11 

Mississippi 1,784 18,119 401 710 683 3,368 10 

North Carolina 1,846 4,233 109 222 209 670 2 

South Carolina 1,289 1,946 109 138 123 220 1 

Tennessee 731 7,565 765 502 469 2,082 4 

Virginia 4,094 21,918 524 966 922 3,755 10 

West Virginia 1,026 15,888 341 582 564 3,040 8 

Total SESARM 33,715 162,801 4,516 7,869 7,462 28,726 86 

 

Percentage of Regional Total State SO2 NOx VOC PM10-PRI PM25-PRI CO NH3

Alabama 5.2 11.4 9.1 9.2 9.4 13.0 9.4 

Florida 53.8 29.7 27.9 37.8 37.2 24.4 33.3 

Georgia 6.1 6.5 5.7 6.1 6.1 6.4 5.3 

Kentucky 3.0 9.7 7.5 7.3 7.5 10.5 12.6 

Mississippi 5.3 11.1 8.9 9.0 9.2 11.7 11.3 

North Carolina 5.5 2.6 2.4 2.8 2.8 2.3 2.3 

South Carolina 3.8 1.2 2.4 1.8 1.6 0.8 1.0 

Tennessee 2.2 4.6 16.9 6.4 6.3 7.2 4.6 

Virginia 12.1 13.5 11.6 12.3 12.4 13.1 11.5 

West Virginia 3.0 9.8 7.6 7.4 7.6 10.6 8.8 

Total SESARM 100 100 100 100 100 100 100 
January 2012 

 60 Final Report 

Table IV-11. Final 2007 Locomotive Emission Estimates by State

Pollutant Emissions, tons per year State SO2 NOx VOC PM10-PRI PM25-PRI CO NH3

Alabama 196 17,899 972 598 552 2,542 8 

Florida 175 11,625 592 356 332 1,505 5 

Georgia 252 24,066 1,303 801 739 3,402 11 

Kentucky 173 16,806 888 550 508 2,355 7 

Mississippi 131 9,933 489 304 280 1,295 4 

North Carolina 130 11,592 622 378 350 1,610 5 

South Carolina 99 8,968 479 296 273 1,264 4 

Tennessee 367 19,461 1,083 650 591 2,799 8 

Virginia 444 21,639 1,180 728 678 3,066 9 

West Virginia 212 13,037 677 423 389 1,796 6 

Total SESARM 2,178 155,025 8,285 5,085 4,693 21,633 67 

 

 

Percentage of Regional Total State SO2 NOx VOC PM10-PRI PM25-PRI CO NH3

Alabama 9.0 11.5 11.7 11.8 11.8 11.8 11.8 

Florida 8.0 7.5 7.1 7.0 7.1 7.0 6.9 

Georgia 11.6 15.5 15.7 15.7 15.7 15.7 15.8 

Kentucky 8.0 10.8 10.7 10.8 10.8 10.9 10.9 

Mississippi 6.0 6.4 5.9 6.0 6.0 6.0 6.0 

North Carolina 6.0 7.5 7.5 7.4 7.5 7.4 7.5 

South Carolina 4.6 5.8 5.8 5.8 5.8 5.8 5.8 

Tennessee 16.8 12.6 13.1 12.8 12.6 12.9 12.5 

Virginia 20.4 14.0 14.2 14.3 14.4 14.2 14.0 

West Virginia 9.8 8.4 8.2 8.3 8.3 8.3 8.7 

Total SESARM 100 100 100 100 100 100 100 
January 2012 

 61 Final Report 

V. REFERENCES 

ACE, 2010. U.S. Army Corps of Engineers, Navigation Data Center, U.S. Waterways Data, Principal Port 

commodity tonnage for 2005 and 2007, available at http://www.iwr.usace.army.mil/ndc/db/pport/dbf, accessed 

on January 2010. 

Census, 2009a. U.S. Census Bureau, 2006 County Business Patterns, U.S. Department of Commerce, accessed 

from http://www.census.gov/epcd/cbp/index.html, March 2009. 

Census, 2009b: U.S. Census Bureau, 2006 Census of Governments, U.S. Department of Commerce, accessed from 

http://www.census.gov/govs/apes/historical_data_2006.html, April 2009. 

DOE, 2009a. U.S. Department of Energy, Energy Information Administration, “Petroleum Navigator- Total Distillate 

Sales/Deliveries to Railroad Consumers (Thousand Gallons),” 

http://tonto.eia.doe.gov/dnav/pet/pet_cons_821dst_dcu_nus_a.htm, December 2009. 

DOE, 2009b. U.S. Department of Energy, Energy Efficiency and Renewable Energy, “Transportation Energy Data 

Book: Tables A.13 and A.15, http://cta.ornl.gov/data/appendix_a.shtml, 2009. 

EIA, 2008a. Energy Information Administration, “Domestic Distribution of U.S. Coal by Destination State, Consumer, 

Origin and Method of Transportation, 2007,” U.S. Department of Energy, available from 

http://www.eia.doe.gov/cneaf/coal/page/coaldistrib/2007/d_07state.pdf, issued December 2008. 

EIA, 2008b:. Energy Information Administration, “Quarterly Coal Report, October–December 2007,” DOE/EIA-0121 

(2007/04Q), U.S. Department of Energy, available from 

http://tonto.eia.doe.gov/FTPROOT/coal/qcr/0121074q.pdf, issued March 2008. 

EIA, 2008c. Energy Information Administration, “Domestic Distribution of U.S. Coal by Origin State, Consumer, 

Destination and Method of Transportation, 2007,” U.S. Department of Energy, available from 

http://www.eia.doe.gov/cneaf/coal/page/coaldistrib/2007/o_07state.pdf, issued December 2008. 

EIA, 2009a. Energy Information Administration, “State Energy Data System (SEDS): Consumption, Price, and 

Expenditure Estimates,” U.S. Department of Energy, accessed from 

http://www.eia.doe.gov/emeu/states/_seds.html, accessed December 2009. 

EIA, 2009b. Energy Information Administration, “Fuel Oil and Kerosene Sales,” U.S. Department of Energy, 

accessed from 

http://www.eia.doe.gov/pub/oil_gas/petroleum/data_publications/fuel_oil_and_kerosene_sales/historical/2002/

foks_2002.html, accessed December 2009. 

EIA, 2009c. Energy Information Administration, “2006 Energy Consumption by ManufacturersTables,” 2006 

Manufacturing Energy Consumption Survey, U.S. Department of Energy, accessed from 

http://www.eia.doe.gov/emeu/mecs/mecs2006/2006tables.html, issued June 2009. 

EIA, 2009d. Energy Information Administration, “Annual Energy Outlook 2010 Early Release Overview,” Department 

of Energy, accessed from http://www.eia.doe.gov/oiaf/aeo/index.html, released December 2009. 

EPA, 2003a. U.S. Environmental Protection Agency, “Draft Regulatory Impact Analysis: Control of Emissions from 

Nonroad Diesel Engines,” EPA420-R-03-008, Office of Transportation and Air Quality, April 2003. 
January 2012 

 62 Final Report 

EPA, 2003b. U.S. Environmental Protection Agency, AP 42, Compilation of Air Pollutant Emission Factors, Fifth 

Edition, “Volume I, Chapter 1: External Combustion Sources, Section 1.6-Wood Residue in Combustion 

Boilers,” accessed from http://www.epa.gov/ttn/chief/ap42/ch01/final/c01s06.pdf, September 2003. 

EPA, 2008a. U.S. Environmental Protection Agency, “Regulatory Impact Analysis: Control of Emissions of Air 

Pollution from Locomotive Engines and Marine Compression Ignition Engines Less than 30 Liters Per 

Cylinder,” EPA420-R-08-001a, Assessment and Standards Division, Office of Transportation and Air Quality, 

May 2008 

EPA, 2008b. U.S. Environmental Protection Agency, “Regulatory Impact Analysis: Control of Emissions of Air 

Pollution from Category 3 Marine Diesel Engines, Chapter 3 Emission Inventory,” EPA-420-R-09-019, 

Assessment and Standards Division Office of Transportation and Air, December 2008. 

EPA, 2009. U.S. Environmental Protection Agency, “Economic Analysis of Final Effluent Limitation Guidelines and 

Standards for the Construction and Development Industry,” Office of Water, October 21, 2009. 

EPA, 2010. U.S. Environmental Protection Agency, EGAS Version 5.0, available for download from 

http://www.epa.gov/ttnecas1/egas5.htm, accessed March 2010. 

ERG, 2009a. Eastern Research Group, “Documentation for Aircraft Component of the National Emissions Inventory 

Methodology,” prepared under subcontract to E.H. Pechan and Associates, Inc. for U.S. Environmental 

Protection Agency, Emissions, Monitoring and Analysis Division, December 15, 2009. 

ERG, 2009b. Eastern Research Group, “Documentation for Commercial Marine Vessel Component of the National 

Emissions Inventory Methodology,” prepared under subcontract to E.H. Pechan and Associates, Inc. for U.S. 

Environmental Protection Agency, Emissions, Monitoring and Analysis Division, December 15, 2009. 

ERTAC, 2010a. Eastern Regional Technical Advisory Committee, 2007 Class I line haul emissions, transmitted in 

file “EmissionsByCounty_Round6.xls” in email entitled “ERTAC update/Class I emissions,” from M. Bergin, 

ERTAC to K. Thesing, E.H. Pechan & Associates, Inc., March 23, 2010. 

ERTAC, 2010b. Eastern Regional Technical Advisory Committee, 2008 Class II/III line haul Emissions, transmitted 

in file “ClassII_III_v4.xls” in email entitled “Class II/III Spreadsheet with Reporting Marks,” from M. Janssen, 

LADCO to ERTAC distribution list, March 1, 2010. 

ERTAC, 2010c. Eastern Regional Technical Advisory Committee, Railyard Emissions, transmitted in file “ERTAC 

Railyard switcher emissions inventory 6_4_2010.xls” in email from M. Bergin, ERTAC to ERTAC distribution 

list, June 4, 2010. 

FAA, 2010. Federal Aviation Administration, “2007 and 2008 LTO operations by SESARM State,” obtained from Air 

Traffic Activity System, http://aspm.faa.gov/opsnet/sys/Main.asp?force=atads, February 2010. 

Huntley, 2009. Huntley, Roy, U.S. Environmental Protection Agency, “SCCs & emission factors to be used in 2008 

NEI to Bollman May 1 2009.mdb [electronic file],” May 1, 2009. 

Lorenz, 2009. Lorenz, Thomas, Energy Information Administration, personal communication with Jonathan Dorn, 

E.H. Pechan & Associates, Inc., September 29, 2009. 

Pechan, 2004. E.H. Pechan & Associates, Inc. “Estimating Ammonia Emissions from Anthropogenic Nonagricultural 

Sources - Draft Final Report,” prepared for the Emission Inventory Improvement Program, April 2004. 
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 63 Final Report 

Pechan, 2009a. E.H. Pechan and Associates, Inc., “Non-Road and Area Source Base Year and Future Year 

Emissions Inventories Technical Memorandum #1: Base Year Inventory – Summary of 2008 NEI Efforts,” 

prepared for Southeastern States Air Resource Managers, Inc., September 14, 2009. 

Pechan, 2009b. E.H. Pechan and Associates, Inc., “Evaluation of ICI Combustion Coal Sulfur Content, Technical 

Memorandum,” prepared for Central Air Planning Association, March 28, 2009. 

Pechan, 2009c. E.H. Pechan and Associates, Inc., “Instructions To SESARM States For Updating EPA’s National 

Mobile Inventory Model 2007 County-Level Database, Technical Memorandum,” prepared for SESARM, 

September 18, 2009. 

Pechan, 2010. E.H. Pechan and Associates, Inc., “Area & Nonroad Base & Forecast Year Inventories, Final Report,” 

prepared for Southeastern States Air Resource Managers, Inc., June 2010. 
January 2012 

A-1 Final Report 

APPENDIX A. POINT SOURCE SUBTRACTION PROCEDURE DETAILS 

This Appendix describes source category-specific details on the point source subtraction procedures, and displays 

the area SCC to point SCC crosswalk (see Tables A-1 through A-8). 

A. ICI FUEL COMBUSTION 

To assist in the point source subtractions for industrial, commercial, and institutional (ICI) fuel combustion, 

TranSystems developed two crosswalks: one between each industrial fuel combustion area SCC and associated 

point SCCs (Table A-1), and an analogous crosswalk developed for commercial/institutional fuel combustion (Table 

A-2). 

Because natural gas consumed as pipeline fuel is not included by the Energy Information Administration (EIA) in 

EIA’s state energy consumption data for the Industrial sector, it was necessary to exclude pipeline natural gas 

combustion emissions from the point source subtraction procedure. Since there are no SCCs specific to pipeline 

natural gas combustion, point source pipeline natural gas combustion emission estimates were compiled by summing 

emissions for industrial sector natural gas internal combustion engine records (SCC 202002xx) with a pipelinerelated Standard Industrial Classification (SIC) or North American Industrial Classification System (NAICS) code (SIC 

codes 1311, 1321, 1381, 4612, 4613, 4619, 4922, 4923, 4924, 4925, or 4931; NAICS codes 211111, 21112, 22121, 

221210, 486110, 48621, 486210, 486910, 48699, or 486990). 

B. CONSTRUCTION DUST 

Table A-3 displays the point SCCs associated with dust from Construction activities. These SCCs do not provide 

information to separate activity into the two area source category processes: 

 2311010000 - Construction: SIC 15-17; Residential; Total; and 

 2311020000 - Construction: SIC 15-18; Industrial/Commercial/Institutional; Total. 

TranSystems apportioned point source construction dust emissions between the two categories using state-level 

acreage data reported in the EPA October 2008 report “Economic Analysis of Final Effluent Limitation Guidelines and 

Standards for the Construction and Development Industry” (EPA, 2009). These proportions for each SESARM state 

are displayed below. 
January 2012 

A-2 Final Report 

Percentage of Construction Acreage by State and Type of Construction 

State Residential % Other % 

Alabama 36 64 

Florida 41 59 

Georgia 39 61 

Kentucky 31 69 

Mississippi 24 76 

North Carolina 48 52 

South Carolina 42 58 

Tennessee 35 65 

Virginia 45 55 

West Virginia 40 60 

Source: Table 4-8 from EPA, 2009. 

C. SOLVENT UTILIZATION 

Table A-5 presents the point source crosswalk for each solvent utilization nonpoint SCC. This crosswalk was derived 

from the crosswalk used in performing VOC emissions-based point source subtractions for the 2002 NEI. As noted 

in the Table A-5 crosswalk, two area source solvent utilization SCCs (2401005000-Auto Refinishing and 

2401070000-Motor Vehicles) are associated with the same point SCCs. For the Auto Refinishing area source 

category, point source subtractions for the listed SCCs were limited to records identified with Auto Refinishing 

industry sector SIC/NAICS codes (e.g., NAICS code 8111*). Emissions for all other applicable point SCC S/L 

inventory records were subtracted from total emissions for the Motor Vehicles source category. 

D. GASOLINE DISTRIBUTION 

Table A-6 displays the point SCCs associated with gasoline distribution. Some of these SCCs do not provide 

information to separate activity into each area source stage I gasoline distribution filling technology. Therefore, 

TranSystems allocated the emissions from these point SCCs to each filling technology based on the proportion of 

emissions from TranSystems default inventory. 
A-3 

Table A-1. Industrial Fuel Combustion Crosswalk for Point Source Subtractions. 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

2102001000 - Stationary Source Fuel Combustion; Industrial; Anthracite Coal; Total: All Boiler Types 

10200101 External Combustion Boilers Industrial Anthracite Coal Pulverized Coal 10200104 External Combustion Boilers Industrial Anthracite Coal Traveling Grate (Overfeed) Stoker 

10200107 External Combustion Boilers Industrial Anthracite Coal Hand-fired 10200117 External Combustion Boilers Industrial Anthracite Coal Fluidized Bed Boiler Burning Anthracite-Culm F

39000189 Industrial Processes In-process Fuel Use Anthracite Coal General 39000199 Industrial Processes In-process Fuel Use Anthracite Coal General 

2102002000 - Stationary Source Fuel Combustion; Industrial; Bituminous/Subbituminous Coal; Total: All Boiler Types 

10200201 External Combustion Boilers Industrial Bituminous/Subbituminous Coal Pulverized Coal: Wet Bottom 10200202 External Combustion Boilers Industrial Bituminous/Subbituminous Coal Pulverized Coal: Dry Bottom 10200203 External Combustion Boilers Industrial Bituminous/Subbituminous Coal Cyclone Furnace 

10200204 External Combustion Boilers Industrial Bituminous/Subbituminous Coal Spreader Stoker 

10200205 External Combustion Boilers Industrial Bituminous/Subbituminous Coal Overfeed Stoker 

10200206 External Combustion Boilers Industrial Bituminous/Subbituminous Coal Underfeed Stoker 

10200210 External Combustion Boilers Industrial Bituminous/Subbituminous Coal Overfeed Stoker ** 

10200212 External Combustion Boilers Industrial Bituminous/Subbituminous Coal Pulverized Coal: Dry Bottom (Tangential) 10200213 External Combustion Boilers Industrial Bituminous/Subbituminous Coal Wet Slurry 10200217 External Combustion Boilers Industrial Bituminous/Subbituminous Coal Atmospheric Fluidized Bed Combustion: Bubbl

Bed (Bituminous Coal) 

10200218 External Combustion Boilers Industrial Bituminous/Subbituminous Coal Atmospheric Fluidized Bed Combustion: Circula

Bed (Bitum. Coal) 

10200219 External Combustion Boilers Industrial Bituminous/Subbituminous Coal Cogeneration (Bituminous Coal) 10200221 External Combustion Boilers Industrial Bituminous/Subbituminous Coal Pulverized Coal: Wet Bottom (Subbituminous C

10200222 External Combustion Boilers Industrial Bituminous/Subbituminous Coal Pulverized Coal: Dry Bottom (Subbituminous Co

10200223 External Combustion Boilers Industrial Bituminous/Subbituminous Coal Cyclone Furnace (Subbituminous Coal) 

10200224 External Combustion Boilers Industrial Bituminous/Subbituminous Coal Spreader Stoker (Subbituminous Coal) 10200225 External Combustion Boilers Industrial Bituminous/Subbituminous Coal Traveling Grate (Overfeed) Stoker (Subbitumino

Coal) 

10200226 External Combustion Boilers Industrial Bituminous/Subbituminous Coal Pulverized Coal: Dry Bottom Tangential 

(Subbituminous Coal) 

10200229 External Combustion Boilers Industrial Bituminous/Subbituminous Coal Cogeneration (Subbituminous Coal) 10500102 External Combustion Boilers Space Heaters Industrial Coal ** 39000201 Industrial Processes In-process Fuel Use Bituminous Coal Cement Kiln/Dryer (Bituminous Coal) 39000203 Industrial Processes In-process Fuel Use Bituminous Coal Lime Kiln (Bituminous) 39000288 Industrial Processes In-process Fuel Use Bituminous Coal General (Subbituminous) 
A-4 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

39000289 Industrial Processes In-process Fuel Use Bituminous Coal General (Bituminous) 39000299 Industrial Processes In-process Fuel Use Bituminous Coal General (Bituminous) 50390002 Waste Disposal Solid Waste Disposal - Industrial Auxiliary Fuel/No Emissions Coal 

2102004000 - Stationary Source Fuel Combustion; Industrial; Distillate Oil; Total: Boilers and IC Engines 

10200501 External Combustion Boilers Industrial Distillate Oil Grades 1 and 2 Oil 10200502 External Combustion Boilers Industrial Distillate Oil 10-100 Million Btu/hr ** 10200503 External Combustion Boilers Industrial Distillate Oil < 10 Million Btu/hr ** 10200504 External Combustion Boilers Industrial Distillate Oil Grade 4 Oil 10200505 External Combustion Boilers Industrial Distillate Oil Cogeneration 10201403 External Combustion Boilers Industrial CO Boiler Distillate Oil 10500105 External Combustion Boilers Space Heaters Industrial Distillate Oil 20200101 Internal Combustion Engines Industrial Distillate Oil (Diesel) Turbine 

20200102 Internal Combustion Engines Industrial Distillate Oil (Diesel) Reciprocating 20200103 Internal Combustion Engines Industrial Distillate Oil (Diesel) Turbine: Cogeneration 20200104 Internal Combustion Engines Industrial Distillate Oil (Diesel) Reciprocating: Cogeneration 

20200105 Internal Combustion Engines Industrial Distillate Oil (Diesel) Reciprocating: Crankcase Blowby 

20200106 Internal Combustion Engines Industrial Distillate Oil (Diesel) Reciprocating: Evaporative Losses (Fuel Stora

and Delivery System) 

20200107 Internal Combustion Engines Industrial Distillate Oil (Diesel) Reciprocating: Exhaust 20200108 Internal Combustion Engines Industrial Distillate Oil (Diesel) Turbine: Evaporative Losses (Fuel Storage an

Delivery System) 

20200109 Internal Combustion Engines Industrial Distillate Oil (Diesel) Turbine: Exhaust 

20200401 Internal Combustion Engines Industrial Large Bore Engine Diesel 20200405 Internal Combustion Engines Industrial Large Bore Engine Crankcase Blowby 20200406 Internal Combustion Engines Industrial Large Bore Engine Evaporative Losses (Fuel Storage and Delive

System) 

20200407 Internal Combustion Engines Industrial Large Bore Engine Exhaust 27000320 Internal Combustion Engines Off-highway Diesel Engines Industrial Equipment Industrial Fork Lift: Diesel 

30190001 Industrial Processes Chemical Manufacturing Fuel Fired Equipment Distillate Oil (No. 2): Process Heaters 

30190011 Industrial Processes Chemical Manufacturing Fuel Fired Equipment Distillate Oil (No. 2): Incinerators 

30190021 Industrial Processes Chemical Manufacturing Fuel Fired Equipment Distillate Oil (No. 2): Flares 30290001 Industrial Processes Food and Agriculture Fuel Fired Equipment Distillate Oil (No. 2): Process Heaters 

30390001 Industrial Processes Primary Metal Production Fuel Fired Equipment Distillate Oil (No. 2): Process Heaters 30390011 Industrial Processes Primary Metal Production Fuel Fired Equipment Distillate Oil (No. 2): Incinerators 

30390021 Industrial Processes Primary Metal Production Fuel Fired Equipment Distillate Oil (No. 2): Flares 30400406 Industrial Processes Secondary Metal Production Lead Pot Furnace Heater: Distillate Oil 
A-5 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

30490001 Industrial Processes Secondary Metal Production Fuel Fired Equipment Distillate Oil (No. 2): Process Heaters 30490011 Industrial Processes Secondary Metal Production Fuel Fired Equipment Distillate Oil (No. 2): Incinerators 

30490021 Industrial Processes Secondary Metal Production Fuel Fired Equipment Distillate Oil (No. 2): Flares 30490031 Industrial Processes Secondary Metal Production Fuel Fired Equipment Distillate Oil (No. 2): Furnaces 

30500208 Industrial Processes Mineral Products Asphalt Concrete Asphalt Heater: Distillate Oil 30505022 Industrial Processes Mineral Products Asphalt Processing (Blowing) Asphalt Heater: Distillate Oil 30590001 Industrial Processes Mineral Products Fuel Fired Equipment Distillate Oil (No. 2): Process Heaters 

30590011 Industrial Processes Mineral Products Fuel Fired Equipment Distillate Oil (No. 2): Incinerators 

30590021 Industrial Processes Mineral Products Fuel Fired Equipment Distillate Oil (No. 2): Flares 

30600901 Industrial Processes Petroleum Industry Flares Distillate Oil 30609901 Industrial Processes Petroleum Industry Incinerators Distillate Oil (No. 2) 30790001 Industrial Processes Pulp and Paper and Wood 

Products 

Fuel Fired Equipment Distillate Oil (No. 2): Process Heaters 

30790011 Industrial Processes Pulp and Paper and Wood 

Products 

Fuel Fired Equipment Distillate Oil (No. 2): Incinerators 

30790021 Industrial Processes Pulp and Paper and Wood 

Products 

Fuel Fired Equipment Distillate Oil (No. 2): Flares 

30890001 Industrial Processes Rubber and Miscellaneous 

Plastics Products 

Fuel Fired Equipment Distillate Oil (No. 2): Process Heaters 

30890011 Industrial Processes Rubber and Miscellaneous 

Plastics Products 

Fuel Fired Equipment Distillate Oil (No. 2): Incinerators 

30890021 Industrial Processes Rubber and Miscellaneous 

Plastics Products 

Fuel Fired Equipment Distillate Oil (No. 2): Flares 

30990001 Industrial Processes Fabricated Metal Products Fuel Fired Equipment Distillate Oil (No. 2): Process Heaters 30990011 Industrial Processes Fabricated Metal Products Fuel Fired Equipment Distillate Oil (No. 2): Incinerators 

31000401 Industrial Processes Oil and Gas Production Process Heaters Distillate Oil (No. 2) 31000411 Industrial Processes Oil and Gas Production Process Heaters Distillate Oil (No. 2): Steam Generators 

31390001 Industrial Processes Electrical Equipment Process Heaters Distillate Oil (No. 2) 39000501 Industrial Processes In-process Fuel Use Distillate Oil Asphalt Dryer ** 39000502 Industrial Processes In-process Fuel Use Distillate Oil Cement Kiln/Dryer 39000503 Industrial Processes In-process Fuel Use Distillate Oil Lime Kiln 39000589 Industrial Processes In-process Fuel Use Distillate Oil General 39000598 Industrial Processes In-process Fuel Use Distillate Oil Grade 4 Oil: General 39000599 Industrial Processes In-process Fuel Use Distillate Oil General 39900501 Industrial Processes Miscellaneous Manufacturing 

Industries 

Process Heater/Furnace Distillate Oil 

39990001 Industrial Processes Miscellaneous Manufacturing 

Industries 

Miscellaneous Manufacturing 

Industries 

Distillate Oil (No. 2): Process Heaters 

39990011 Industrial Processes Miscellaneous Manufacturing 

Industries 

Miscellaneous Manufacturing 

Industries 

Distillate Oil (No. 2): Incinerators 
A-6 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

39990021 Industrial Processes Miscellaneous Manufacturing 

Industries 

Miscellaneous Manufacturing 

Industries 

Distillate Oil (No. 2 Oil): Flares 

40201002 Petroleum and Solvent Evaporation Surface Coating Operations Coating Oven Heater Distillate Oil 

40290011 Petroleum and Solvent Evaporation Surface Coating Operations Fuel Fired Equipment Distillate Oil: Incinerator/Afterburner 

49090011 Petroleum and Solvent Evaporation Organic Solvent Evaporation Fuel Fired Equipment Distillate Oil (No. 2): Incinerators 

49090021 Petroleum and Solvent Evaporation Organic Solvent Evaporation Fuel Fired Equipment Distillate Oil (No. 2): Flares 

50390005 Waste Disposal Solid Waste Disposal - Industrial Auxiliary Fuel/No Emissions Distillate Oil 

2102005000 - Stationary Source Fuel Combustion; Industrial; Residual Oil; Total: All Boiler Types 

10200401 External Combustion Boilers Industrial Residual Oil Grade 6 Oil 10200402 External Combustion Boilers Industrial Residual Oil 10-100 Million Btu/hr ** 10200403 External Combustion Boilers Industrial Residual Oil < 10 Million Btu/hr ** 10200404 External Combustion Boilers Industrial Residual Oil Grade 5 Oil 10200405 External Combustion Boilers Industrial Residual Oil Cogeneration 10201404 External Combustion Boilers Industrial CO Boiler Residual Oil 20200501 Internal Combustion Engines Industrial Residual/Crude Oil Reciprocating 20200505 Internal Combustion Engines Industrial Residual/Crude Oil Reciprocating: Crankcase Blowby 20200506 Internal Combustion Engines Industrial Residual/Crude Oil Reciprocating: Evaporative Losses (Fuel Stora

and Delivery System) 

20200507 Internal Combustion Engines Industrial Residual/Crude Oil Reciprocating: Exhaust 30190002 Industrial Processes Chemical Manufacturing Fuel Fired Equipment Residual Oil: Process Heaters 

30190012 Industrial Processes Chemical Manufacturing Fuel Fired Equipment Residual Oil: Incinerators 

30190022 Industrial Processes Chemical Manufacturing Fuel Fired Equipment Residual Oil: Flares 

30290002 Industrial Processes Food and Agriculture Fuel Fired Equipment Residual Oil: Process Heaters 

30390002 Industrial Processes Primary Metal Production Fuel Fired Equipment Residual Oil: Process Heaters 

30390012 Industrial Processes Primary Metal Production Fuel Fired Equipment Residual Oil: Incinerators 

30390022 Industrial Processes Primary Metal Production Fuel Fired Equipment Residual Oil: Flares 

30490002 Industrial Processes Secondary Metal Production Fuel Fired Equipment Residual Oil: Process Heaters 

30490012 Industrial Processes Secondary Metal Production Fuel Fired Equipment Residual Oil: Incinerators 

30490022 Industrial Processes Secondary Metal Production Fuel Fired Equipment Residual Oil: Flares 

30490032 Industrial Processes Secondary Metal Production Fuel Fired Equipment Residual Oil: Furnaces 30500207 Industrial Processes Mineral Products Asphalt Concrete Asphalt Heater: Residual Oil 30505021 Industrial Processes Mineral Products Asphalt Processing (Blowing) Asphalt Heater: Residual Oil 

30590002 Industrial Processes Mineral Products Fuel Fired Equipment Residual Oil: Process Heaters 30590012 Industrial Processes Mineral Products Fuel Fired Equipment Residual Oil: Incinerators 30600111 Industrial Processes Petroleum Industry Process Heaters Oil-fired (No. 6 Oil) > 100 Million Btu Capacit

30600902 Industrial Processes Petroleum Industry Flares Residual Oil 
A-7 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

30609902 Industrial Processes Petroleum Industry Incinerators Residual Oil 30790002 Industrial Processes Pulp and Paper and Wood 

Products 

Fuel Fired Equipment Residual Oil: Process Heaters 

30790012 Industrial Processes Pulp and Paper and Wood 

Products 

Fuel Fired Equipment Residual Oil: Incinerators 

30790022 Industrial Processes Pulp and Paper and Wood 

Products 

Fuel Fired Equipment Residual Oil: Flares 

30890002 Industrial Processes Rubber and Miscellaneous 

Plastics Products 

Fuel Fired Equipment Residual Oil: Process Heaters 

30890012 Industrial Processes Rubber and Miscellaneous 

Plastics Products 

Fuel Fired Equipment Residual Oil: Incinerators 

30890022 Industrial Processes Rubber and Miscellaneous 

Plastics Products 

Fuel Fired Equipment Residual Oil: Flares 

30990002 Industrial Processes Fabricated Metal Products Fuel Fired Equipment Residual Oil: Process Heaters 30990012 Industrial Processes Fabricated Metal Products Fuel Fired Equipment Residual Oil: Incinerators 

31000402 Industrial Processes Oil and Gas Production Process Heaters Residual Oil 31000412 Industrial Processes Oil and Gas Production Process Heaters Residual Oil: Steam Generators 

31390002 Industrial Processes Electrical Equipment Process Heaters Residual Oil 39000402 Industrial Processes In-process Fuel Use Residual Oil Cement Kiln/Dryer 39000403 Industrial Processes In-process Fuel Use Residual Oil Lime Kiln 39000489 Industrial Processes In-process Fuel Use Residual Oil General 39000499 Industrial Processes In-process Fuel Use Residual Oil General 39990002 Industrial Processes Miscellaneous Manufacturing 

Industries 

Miscellaneous Manufacturing 

Industries 

Residual Oil: Process Heaters 

39990012 Industrial Processes Miscellaneous Manufacturing 

Industries 

Miscellaneous Manufacturing 

Industries 

Residual Oil: Incinerators 

39990022 Industrial Processes Miscellaneous Manufacturing 

Industries 

Miscellaneous Manufacturing 

Industries 

Residual Oil: Flares 

40201003 Petroleum and Solvent Evaporation Surface Coating Operations Coating Oven Heater Residual Oil 40290012 Petroleum and Solvent Evaporation Surface Coating Operations Fuel Fired Equipment Residual Oil: Incinerator/Afterburner 

49090012 Petroleum and Solvent Evaporation Organic Solvent Evaporation Fuel Fired Equipment Residual Oil: Incinerators 

49090022 Petroleum and Solvent Evaporation Organic Solvent Evaporation Fuel Fired Equipment Residual Oil: Flares 

2102006000 - Stationary Source Fuel Combustion; Industrial; Natural Gas; Total: Boilers and IC Engines 

10200601 External Combustion Boilers Industrial Natural Gas > 100 Million Btu/hr 10200602 External Combustion Boilers Industrial Natural Gas 10-100 Million Btu/hr 10200603 External Combustion Boilers Industrial Natural Gas < 10 Million Btu/hr 10200604 External Combustion Boilers Industrial Natural Gas Cogeneration 10201401 External Combustion Boilers Industrial CO Boiler Natural Gas 10500106 External Combustion Boilers Space Heaters Industrial Natural Gas 
A-8 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

20200201 Internal Combustion Engines Industrial Natural Gas Turbine 20200202 Internal Combustion Engines Industrial Natural Gas Reciprocating 20200203 Internal Combustion Engines Industrial Natural Gas Turbine: Cogeneration 20200204 Internal Combustion Engines Industrial Natural Gas Reciprocating: Cogeneration 20200205 Internal Combustion Engines Industrial Natural Gas Reciprocating: Crankcase Blowby 

20200206 Internal Combustion Engines Industrial Natural Gas Reciprocating: Evaporative Losses (Fuel Delive

System) 

20200207 Internal Combustion Engines Industrial Natural Gas Reciprocating: Exhaust 20200208 Internal Combustion Engines Industrial Natural Gas Turbine: Evaporative Losses (Fuel Delivery 

System) 

20200209 Internal Combustion Engines Industrial Natural Gas Turbine: Exhaust 

20200251 Internal Combustion Engines Industrial Natural Gas 2-cycle Rich Burn 20200252 Internal Combustion Engines Industrial Natural Gas 2-cycle Lean Burn 20200253 Internal Combustion Engines Industrial Natural Gas 4-cycle Rich Burn 20200254 Internal Combustion Engines Industrial Natural Gas 4-cycle Lean Burn 20200255 Internal Combustion Engines Industrial Natural Gas 2-cycle Clean Burn 20200256 Internal Combustion Engines Industrial Natural Gas 4-cycle Clean Burn 30190003 Industrial Processes Chemical Manufacturing Fuel Fired Equipment Natural Gas: Process Heaters 30190013 Industrial Processes Chemical Manufacturing Fuel Fired Equipment Natural Gas: Incinerators 30190023 Industrial Processes Chemical Manufacturing Fuel Fired Equipment Natural Gas: Flares 

30290003 Industrial Processes Food and Agriculture Fuel Fired Equipment Natural Gas: Process Heaters 30291001 Industrial Processes Food and Agriculture Fuel Fired Equipment Broiling Food: Natural Gas 

30390003 Industrial Processes Primary Metal Production Fuel Fired Equipment Natural Gas: Process Heaters 30390013 Industrial Processes Primary Metal Production Fuel Fired Equipment Natural Gas: Incinerators 30390023 Industrial Processes Primary Metal Production Fuel Fired Equipment Natural Gas: Flares 

30400407 Industrial Processes Secondary Metal Production Lead Pot Furnace Heater: Natural Gas 30490003 Industrial Processes Secondary Metal Production Fuel Fired Equipment Natural Gas: Process Heaters 30490013 Industrial Processes Secondary Metal Production Fuel Fired Equipment Natural Gas: Incinerators 

30490023 Industrial Processes Secondary Metal Production Fuel Fired Equipment Natural Gas: Flares 

30490033 Industrial Processes Secondary Metal Production Fuel Fired Equipment Natural Gas: Furnaces 
A-9 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

30500206 Industrial Processes Mineral Products Asphalt Concrete Asphalt Heater: Natural Gas 30505020 Industrial Processes Mineral Products Asphalt Processing (Blowing) Asphalt Heater: Natural Gas 

30590003 Industrial Processes Mineral Products Fuel Fired Equipment Natural Gas: Process Heaters 30590013 Industrial Processes Mineral Products Fuel Fired Equipment Natural Gas: Incinerators 30590023 Industrial Processes Mineral Products Fuel Fired Equipment Natural Gas: Flares 30600105 Industrial Processes Petroleum Industry Process Heaters Natural Gas 30600903 Industrial Processes Petroleum Industry Flares Natural Gas 30602401 Industrial Processes Petroleum Industry Reciprocating Engine Compressors Natural Gas Fired 30609903 Industrial Processes Petroleum Industry Incinerators Natural Gas 30790003 Industrial Processes Pulp and Paper and Wood 

Products 

Fuel Fired Equipment Natural Gas: Process Heaters 

30790013 Industrial Processes Pulp and Paper and Wood 

Products 

Fuel Fired Equipment Natural Gas: Incinerators 

30790023 Industrial Processes Pulp and Paper and Wood 

Products 

Fuel Fired Equipment Natural Gas: Flares 

30890003 Industrial Processes Rubber and Miscellaneous 

Plastics Products 

Fuel Fired Equipment Natural Gas: Process Heaters 

30890013 Industrial Processes Rubber and Miscellaneous 

Plastics Products 

Fuel Fired Equipment Natural Gas: Incinerators 

30890023 Industrial Processes Rubber and Miscellaneous 

Plastics Products 

Fuel Fired Equipment Natural Gas: Flares 

30990003 Industrial Processes Fabricated Metal Products Fuel Fired Equipment Natural Gas: Process Heaters 

30990013 Industrial Processes Fabricated Metal Products Fuel Fired Equipment Natural Gas: Incinerators 

30990023 Industrial Processes Fabricated Metal Products Fuel Fired Equipment Natural Gas: Flares 31000404 Industrial Processes Oil and Gas Production Process Heaters Natural Gas 31000414 Industrial Processes Oil and Gas Production Process Heaters Natural Gas: Steam Generators 31390003 Industrial Processes Electrical Equipment Process Heaters Natural Gas 39000602 Industrial Processes In-process Fuel Use Natural Gas Cement Kiln/Dryer 39000603 Industrial Processes In-process Fuel Use Natural Gas Lime Kiln 39000605 Industrial Processes In-process Fuel Use Natural Gas Metal Melting ** 39000689 Industrial Processes In-process Fuel Use Natural Gas General 39000699 Industrial Processes In-process Fuel Use Natural Gas General 39900601 Industrial Processes Miscellaneous Manufacturing 

Industries 

Process Heater/Furnace Natural Gas 

39990003 Industrial Processes Miscellaneous Manufacturing 

Industries 

Miscellaneous Manufacturing 

Industries 

Natural Gas: Process Heaters 

39990013 Industrial Processes Miscellaneous Manufacturing 

Industries 

Miscellaneous Manufacturing 

Industries 

Natural Gas: Incinerators 

39990023 Industrial Processes Miscellaneous Manufacturing 

Industries 

Miscellaneous Manufacturing 

Industries 

Natural Gas: Flares 
A-10 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

40201001 Petroleum and Solvent Evaporation Surface Coating Operations Coating Oven Heater Natural Gas 40290013 Petroleum and Solvent Evaporation Surface Coating Operations Fuel Fired Equipment Natural Gas: Incinerator/Afterburner

40290023 Petroleum and Solvent Evaporation Surface Coating Operations Fuel Fired Equipment Natural Gas: Flares 49090013 Petroleum and Solvent Evaporation Organic Solvent Evaporation Fuel Fired Equipment Natural Gas: Incinerators 49090023 Petroleum and Solvent Evaporation Organic Solvent Evaporation Fuel Fired Equipment Natural Gas: Flares 

50390006 Waste Disposal Solid Waste Disposal - Industrial Auxiliary Fuel/No Emissions Natural Gas 

2102007000 - Stationary Source Fuel Combustion; Industrial; Liquified Petroleum Gas (LPG); Total: All Boiler Types 

10201001 External Combustion Boilers Industrial Liquified Petroleum Gas (LPG) Butane 10201002 External Combustion Boilers Industrial Liquified Petroleum Gas (LPG) Propane 10201003 External Combustion Boilers Industrial Liquified Petroleum Gas (LPG) Butane/Propane Mixture: Specify Percent Butan

Comments 

10500110 External Combustion Boilers Space Heaters Industrial Liquified Petroleum Gas (LPG) 20201001 Internal Combustion Engines Industrial Liquified Petroleum Gas (LPG) Propane: Reciprocating 20201002 Internal Combustion Engines Industrial Liquified Petroleum Gas (LPG) Butane: Reciprocating 20201005 Internal Combustion Engines Industrial Liquified Petroleum Gas (LPG) Reciprocating: Crankcase Blowby 

20201006 Internal Combustion Engines Industrial Liquified Petroleum Gas (LPG) Reciprocating: Evaporative Losses (Fuel Stora

and Delivery System) 

20201007 Internal Combustion Engines Industrial Liquified Petroleum Gas (LPG) Reciprocating: Exhaust 20201008 Internal Combustion Engines Industrial Liquified Petroleum Gas (LPG) Turbine: Evaporative Losses (Fuel Storage an

Delivery System) 

20201009 Internal Combustion Engines Industrial Liquified Petroleum Gas (LPG) Turbine: Exhaust 20201011 Internal Combustion Engines Industrial Liquified Petroleum Gas (LPG) Turbine 20201012 Internal Combustion Engines Industrial Liquified Petroleum Gas (LPG) Reciprocating Engine 20201013 Internal Combustion Engines Industrial Liquified Petroleum Gas (LPG) Turbine: Cogeneration 20201014 Internal Combustion Engines Industrial Liquified Petroleum Gas (LPG) Reciprocating Engine: Cogeneration 

27300320 Internal Combustion Engines Off-highway LPG-fueled Engines Industrial Equipment Industrial Fork Lift: Liquified Petroleum Gas (LP30290005 Industrial Processes Food and Agriculture Fuel Fired Equipment Liquified Petroleum Gas (LPG): Process Heate

30490035 Industrial Processes Secondary Metal Production Fuel Fired Equipment Propane: Furnaces 30500209 Industrial Processes Mineral Products Asphalt Concrete Asphalt Heater: LPG 30505023 Industrial Processes Mineral Products Asphalt Processing (Blowing) Asphalt Heater: LP Gas 30590005 Industrial Processes Mineral Products Fuel Fired Equipment Liquified Petroleum Gas (LPG): Process Heate30600107 Industrial Processes Petroleum Industry Process Heaters LPG-fired 30600905 Industrial Processes Petroleum Industry Flares Liquified Petroleum Gas 30609905 Industrial Processes Petroleum Industry Incinerators Liquified Petroleum Gas 30890004 Industrial Processes Rubber and Miscellaneous 

Plastics Products 

Fuel Fired Equipment Liquified Petroleum Gas (LPG): Process Heate

31000406 Industrial Processes Oil and Gas Production Process Heaters Propane/Butane 
A-11 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

39001089 Industrial Processes In-process Fuel Use Liquified Petroleum Gas General 39001099 Industrial Processes In-process Fuel Use Liquified Petroleum Gas General 39901001 Industrial Processes Miscellaneous Manufacturing 

Industries 

Process Heater/Furnace LPG 

40201004 Petroleum and Solvent Evaporation Surface Coating Operations Coating Oven Heater Liquified Petroleum Gas (LPG) 

50390010 Waste Disposal Solid Waste Disposal - Industrial Auxiliary Fuel/No Emissions Liquified Petroleum Gas (LPG) 

2102008000 - Stationary Source Fuel Combustion; Industrial; Wood; Total: All Boiler Types 

10200901 External Combustion Boilers Industrial Wood/Bark Waste Bark-fired Boiler 10200902 External Combustion Boilers Industrial Wood/Bark Waste Wood/Bark-fired Boiler 10200903 External Combustion Boilers Industrial Wood/Bark Waste Wood-fired Boiler - Wet Wood (>=20% moistur10200904 External Combustion Boilers Industrial Wood/Bark Waste Bark-fired Boiler (< 50,000 Lb Steam) ** 10200905 External Combustion Boilers Industrial Wood/Bark Waste Wood/Bark-fired Boiler (< 50,000 Lb Steam) *10200906 External Combustion Boilers Industrial Wood/Bark Waste Wood-fired Boiler (< 50,000 Lb Steam) ** 10200907 External Combustion Boilers Industrial Wood/Bark Waste Wood Cogeneration 10200908 External Combustion Boilers Industrial Wood/Bark Waste Wood-fired Boiler - Dry Wood (<20% moisture10200910 External Combustion Boilers Industrial Wood/Bark Waste Fuel cell/Dutch oven boilers ** 10200911 External Combustion Boilers Industrial Wood/Bark Waste Stoker boilers ** 10200912 External Combustion Boilers Industrial Wood/Bark Waste Fluidized bed combustion boiler 39000989 Industrial Processes In-process Fuel Use Wood General 39000999 Industrial Processes In-process Fuel Use Wood General: Wood 

2102011000 - Stationary Source Fuel Combustion; Industrial; Kerosene; Total: All Boiler Types 

20200901 Internal Combustion Engines Industrial Kerosene/Naphtha (Jet Fuel) Turbine 20200902 Internal Combustion Engines Industrial Kerosene/Naphtha (Jet Fuel) Reciprocating 20200905 Internal Combustion Engines Industrial Kerosene/Naphtha (Jet Fuel) Reciprocating: Crankcase Blowby 

20200906 Internal Combustion Engines Industrial Kerosene/Naphtha (Jet Fuel) Reciprocating: Evaporative Losses (Fuel Stora

and Delivery System) 

20200907 Internal Combustion Engines Industrial Kerosene/Naphtha (Jet Fuel) Reciprocating: Exhaust 20200908 Internal Combustion Engines Industrial Kerosene/Naphtha (Jet Fuel) Turbine: Evaporative Losses (Fuel Storage an

Delivery System) 

20200909 Internal Combustion Engines Industrial Kerosene/Naphtha (Jet Fuel) Turbine: Exhaust 
A-12 

Table A-2. Commercial/Institutional Fuel Combustion Crosswalk for Point Source Subtractions 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

2103001000 - Stationary Source Fuel Combustion; Commercial/Institutional; Anthracite Coal; Total: All Boiler Types 

10300101 External Combustion Boilers Commercial/Institutional Anthracite Coal Pulverized Coal 10300102 External Combustion Boilers Commercial/Institutional Anthracite Coal Traveling Grate (Overfeed) Stoker 

10300103 External Combustion Boilers Commercial/Institutional Anthracite Coal Hand-fired 

2103002000 - Stationary Source Fuel Combustion; Commercial/Institutional; Bituminous/Subbituminous Coal; Total: All Boiler Types 

10300203 External Combustion Boilers Commercial/Institutional Bituminous/Subbituminous Coal Cyclone Furnace (Bituminous Coal10300205 External Combustion Boilers Commercial/Institutional Bituminous/Subbituminous Coal Pulverized Coal: Wet Bottom (Bituminous 

10300206 External Combustion Boilers Commercial/Institutional Bituminous/Subbituminous Coal Pulverized Coal: Dry Bottom (Bituminous 10300207 External Combustion Boilers Commercial/Institutional Bituminous/Subbituminous Coal Overfeed Stoker (Bituminous Coal) 

10300208 External Combustion Boilers Commercial/Institutional Bituminous/Subbituminous Coal Underfeed Stoker (Bituminous Coal

10300209 External Combustion Boilers Commercial/Institutional Bituminous/Subbituminous Coal Spreader Stoker (Bituminous Coal) 10300211 External Combustion Boilers Commercial/Institutional Bituminous/Subbituminous Coal Overfeed Stoker ** 

10300214 External Combustion Boilers Commercial/Institutional Bituminous/Subbituminous Coal Hand-fired (Bituminous Coal) 10300216 External Combustion Boilers Commercial/Institutional Bituminous/Subbituminous Coal Pulverized Coal: Dry Bottom (Tangential) (Bitum

10300217 External Combustion Boilers Commercial/Institutional Bituminous/Subbituminous Coal Atmospheric Fluidized Bed Combustion: Bubbling B

Coal) 

10300218 External Combustion Boilers Commercial/Institutional Bituminous/Subbituminous Coal Atmospheric Fluidized Bed Combustion: Circulati

Coal) 

10300221 External Combustion Boilers Commercial/Institutional Bituminous/Subbituminous Coal Pulverized Coal: Wet Bottom (Subbitumino

10300222 External Combustion Boilers Commercial/Institutional Bituminous/Subbituminous Coal Pulverized Coal: Dry Bottom (Subbitumino10300223 External Combustion Boilers Commercial/Institutional Bituminous/Subbituminous Coal Cyclone Furnace (Subbituminous Co

10300224 External Combustion Boilers Commercial/Institutional Bituminous/Subbituminous Coal Spreader Stoker (Subbituminous Coa10300225 External Combustion Boilers Commercial/Institutional Bituminous/Subbituminous Coal Traveling Grate (Overfeed) Stoker (Subbitumi

10300226 External Combustion Boilers Commercial/Institutional Bituminous/Subbituminous Coal Pulverized Coal: Dry Bottom Tangential (Subbitu10500202 External Combustion Boilers Space Heaters Commercial/Institutional Coal ** 50190002 Waste Disposal Solid Waste Disposal - 

Government 

Auxiliary Fuel/No Emissions Coal 

50290002 Waste Disposal Solid Waste Disposal - 

Commercial/Institutional 

Auxiliary Fuel/No Emissions Coal 

2103004000 - Stationary Source Fuel Combustion; Commercial/Institutional; Distillate Oil; Total: Boilers and IC Engines 

10300501 External Combustion Boilers Commercial/Institutional Distillate Oil Grades 1 and 2 Oil 10300502 External Combustion Boilers Commercial/Institutional Distillate Oil 10-100 Million Btu/hr ** 10300503 External Combustion Boilers Commercial/Institutional Distillate Oil < 10 Million Btu/hr ** 10300504 External Combustion Boilers Commercial/Institutional Distillate Oil Grade 4 Oil 
A-13 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

10500205 External Combustion Boilers Space Heaters Commercial/Institutional Distillate Oil 20300101 Internal Combustion Engines Commercial/Institutional Distillate Oil (Diesel) Reciprocating 20300102 Internal Combustion Engines Commercial/Institutional Distillate Oil (Diesel) Turbine 20300105 Internal Combustion Engines Commercial/Institutional Distillate Oil (Diesel) Reciprocating: Crankcase Blowby 

20300106 Internal Combustion Engines Commercial/Institutional Distillate Oil (Diesel) Reciprocating: Evaporative Losses (Fuel Storage 

System) 

20300107 Internal Combustion Engines Commercial/Institutional Distillate Oil (Diesel) Reciprocating: Exhaust 

20300108 Internal Combustion Engines Commercial/Institutional Distillate Oil (Diesel) Turbine: Evaporative Losses (Fuel Storage and D

20300109 Internal Combustion Engines Commercial/Institutional Distillate Oil (Diesel) Turbine: Exhaust 

50100602 Waste Disposal Solid Waste Disposal - 

Government 

Fire Fighting Structure: Distillate Oil 

50190005 Waste Disposal Solid Waste Disposal - 

Government 

Auxiliary Fuel/No Emissions Distillate Oil 

50290005 Waste Disposal Solid Waste Disposal - 

Commercial/Institutional 

Auxiliary Fuel/No Emissions Distillate Oil 

2103005000 - Stationary Source Fuel Combustion; Commercial/Institutional; Residual Oil; Total: All Boiler Types 

10300401 External Combustion Boilers Commercial/Institutional Residual Oil Grade 6 Oil 10300402 External Combustion Boilers Commercial/Institutional Residual Oil 10-100 Million Btu/hr ** 10300403 External Combustion Boilers Commercial/Institutional Residual Oil < 10 Million Btu/hr ** 10300404 External Combustion Boilers Commercial/Institutional Residual Oil Grade 5 Oil 

2103006000 - Stationary Source Fuel Combustion; Commercial/Institutional; Natural Gas; Total: Boilers and IC Engines

10300601 External Combustion Boilers Commercial/Institutional Natural Gas > 100 Million Btu/hr 10300602 External Combustion Boilers Commercial/Institutional Natural Gas 10-100 Million Btu/hr 10300603 External Combustion Boilers Commercial/Institutional Natural Gas < 10 Million Btu/hr 10500206 External Combustion Boilers Space Heaters Commercial/Institutional Natural Gas 20300201 Internal Combustion Engines Commercial/Institutional Natural Gas Reciprocating 20300202 Internal Combustion Engines Commercial/Institutional Natural Gas Turbine 20300203 Internal Combustion Engines Commercial/Institutional Natural Gas Turbine: Cogeneration 20300204 Internal Combustion Engines Commercial/Institutional Natural Gas Cogeneration 20300205 Internal Combustion Engines Commercial/Institutional Natural Gas Reciprocating: Crankcase Blowby 

20300206 Internal Combustion Engines Commercial/Institutional Natural Gas Reciprocating: Evaporative Losses (Fuel Deliv

20300207 Internal Combustion Engines Commercial/Institutional Natural Gas Reciprocating: Exhaust 20300208 Internal Combustion Engines Commercial/Institutional Natural Gas Turbine: Evaporative Losses (Fuel Delivery 20300209 Internal Combustion Engines Commercial/Institutional Natural Gas Turbine: Exhaust 50190006 Waste Disposal Solid Waste Disposal - 

Government 

Auxiliary Fuel/No Emissions Natural Gas 
A-14 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

50290006 Waste Disposal Solid Waste Disposal - 

Commercial/Institutional 

Auxiliary Fuel/No Emissions Natural Gas 

2103007000 - Stationary Source Fuel Combustion; Commercial/Institutional; Liquified Petroleum Gas (LPG); Total: All Combustor Types 

10301001 External Combustion Boilers Commercial/Institutional Liquified Petroleum Gas (LPG) Butane 10301002 External Combustion Boilers Commercial/Institutional Liquified Petroleum Gas (LPG) Propane 10301003 External Combustion Boilers Commercial/Institutional Liquified Petroleum Gas (LPG) Butane/Propane Mixture: Specify Percent Butane 

10500210 External Combustion Boilers Space Heaters Commercial/Institutional Liquified Petroleum Gas (LPG) 20301001 Internal Combustion Engines Commercial/Institutional Liquified Petroleum Gas (LPG) Propane: Reciprocating 

20301002 Internal Combustion Engines Commercial/Institutional Liquified Petroleum Gas (LPG) Butane: Reciprocating 

20301005 Internal Combustion Engines Commercial/Institutional Liquified Petroleum Gas (LPG) Reciprocating: Crankcase Blowby 

20301006 Internal Combustion Engines Commercial/Institutional Liquified Petroleum Gas (LPG) Reciprocating: Evaporative Losses (Fuel Storage 

System) 

20301007 Internal Combustion Engines Commercial/Institutional Liquified Petroleum Gas (LPG) Reciprocating: Exhaust 50190010 Waste Disposal Solid Waste Disposal - 

Government 

Auxiliary Fuel/No Emissions Liquified Petroleum Gas (LPG) 

50290010 Waste Disposal Solid Waste Disposal - 

Commercial/Institutional 

Auxiliary Fuel/No Emissions Liquified Petroleum Gas (LPG) 

2103008000 - Stationary Source Fuel Combustion; Commercial/Institutional; Wood; Total: All Boiler Types 

10300901 External Combustion Boilers Commercial/Institutional Wood/Bark Waste Bark-fired Boiler 10300902 External Combustion Boilers Commercial/Institutional Wood/Bark Waste Wood/Bark-fired Boiler 10300903 External Combustion Boilers Commercial/Institutional Wood/Bark Waste Wood-fired Boiler - Wet Wood (>=20% mo10300908 External Combustion Boilers Commercial/Institutional Wood/Bark Waste Wood-fired Boiler - Dry Wood (<20% mo10300910 External Combustion Boilers Commercial/Institutional Wood/Bark Waste Fuel cell/Dutch oven boilers ** 10300911 External Combustion Boilers Commercial/Institutional Wood/Bark Waste Stoker boilers ** 10300912 External Combustion Boilers Commercial/Institutional Wood/Bark Waste Fluidized bed combustion boilers 10500209 External Combustion Boilers Space Heaters Commercial/Institutional Wood 

2103011000 - Stationary Source Fuel Combustion; Commercial/Institutional; Kerosene; Total: All Combustor Types 

20300901 Internal Combustion Engines Commercial/Institutional Kerosene/Naphtha (Jet Fuel) Turbine: JP-4 20300908 Internal Combustion Engines Commercial/Institutional Kerosene/Naphtha (Jet Fuel) Turbine: Evaporative Losses (Fuel Storage and D

20300909 Internal Combustion Engines Commercial/Institutional Kerosene/Naphtha (Jet Fuel) Turbine: Exhaust 50100603 Waste Disposal Solid Waste Disposal - 

Government 

Fire Fighting Structure: Kerosene 
A-15 

Table A-3. Construction Crosswalk for Point Source Subtractions 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

2311010000 - Industrial Processes; Construction: SIC 15 – 17; Residential; Total 

and 

2311020000 - Industrial Processes; Construction: SIC 15 – 18; Industrial/Commercial/Institutional; Total 

31100101 Industrial Processes Building Construction Construction: Building Contractors Site Preparation: Topsoil Removal S

2

31100102 Industrial Processes Building Construction Construction: Building Contractors Site Preparation: Earth Moving (Cut and Fill) S

2

31100103 Industrial Processes Building Construction Construction: Building Contractors Site Preparation: Aggregate Hauling (On Dirt) S

2

31100199 Industrial Processes Building Construction Construction: Building Contractors Other Not Classified S

2

31100201 Industrial Processes Building Construction Demolitions/Special Trade 

Contracts 

Mechanical or Explosive Dismemberment S

2

31100202 Industrial Processes Building Construction Demolitions/Special Trade 

Contracts 

Mechanical or Explosive Dismemberment S

2

31100205 Industrial Processes Building Construction Demolitions/Special Trade 

Contracts 

On-site Truck Traffic S

2

31100206 Industrial Processes Building Construction Demolitions/Special Trade 

Contracts 

On-site Truck Traffic S

2

31100299 Industrial Processes Building Construction Demolitions/Special Trade 

Contracts 

Other Not Classified: Construction/Demolition S

2
A-16 

Table A-4. Publicly Owned Treatment Works Crosswalk for Point Source Subtractions 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

2630020000 - Waste Disposal, Treatment, and Recovery; Wastewater Treatment; Public Owned; Total Processed 

50100701 Waste Disposal Solid Waste Disposal - Government Sewage Treatment Entire Plant 50100702 Waste Disposal Solid Waste Disposal - Government Sewage Treatment Primary Settling Tank 50100703 Waste Disposal Solid Waste Disposal - Government Sewage Treatment Secondary Settling Tank 50100704 Waste Disposal Solid Waste Disposal - Government Sewage Treatment Aeration Tank 50100707 Waste Disposal Solid Waste Disposal - Government Sewage Treatment POTW: Headworks Screening 

50100708 Waste Disposal Solid Waste Disposal - Government Sewage Treatment Comminutor 50100710 Waste Disposal Solid Waste Disposal - Government Sewage Treatment Collector Sewers 50100715 Waste Disposal Solid Waste Disposal - Government Sewage Treatment POTW: Aerated Grit Chamber 50100719 Waste Disposal Solid Waste Disposal - Government Sewage Treatment Lift Station 50100720 Waste Disposal Solid Waste Disposal - Government Sewage Treatment POTW: Primary Settling Tank 50100731 Waste Disposal Solid Waste Disposal - Government Sewage Treatment POTW: Diffused Air Act Sludge 50100732 Waste Disposal Solid Waste Disposal - Government Sewage Treatment POTW: Mechanical Mix Air Act Sludge 

50100733 Waste Disposal Solid Waste Disposal - Government Sewage Treatment POTW: Pure Oxygen Act Sludge 50100734 Waste Disposal Solid Waste Disposal - Government Sewage Treatment POTW: Trickling Filter 

50100740 Waste Disposal Solid Waste Disposal - Government Sewage Treatment POTW: Secondary Clarifier 50100750 Waste Disposal Solid Waste Disposal - Government Sewage Treatment POTW: Tertiary Filters 50100760 Waste Disposal Solid Waste Disposal - Government Sewage Treatment POTW: Chlorine Contact Tank 50100761 Waste Disposal Solid Waste Disposal - Government Sewage Treatment POTW: Dechlorination 50100765 Waste Disposal Solid Waste Disposal - Government Sewage Treatment Weir 50100769 Waste Disposal Solid Waste Disposal - Government Sewage Treatment Storage Basin or Open Tank 50100771 Waste Disposal Solid Waste Disposal - Government Sewage Treatment POTW: Gravity Sludge Thickener 

50100772 Waste Disposal Solid Waste Disposal - Government Sewage Treatment POTW: DAF Sludge Thickener 

50100781 Waste Disposal Solid Waste Disposal - Government Sewage Treatment POTW: Anaerobic Digester 50100791 Waste Disposal Solid Waste Disposal - Government Sewage Treatment POTW: Belt Filter Press 50100792 Waste Disposal Solid Waste Disposal - Government Sewage Treatment POTW: Sludge Centrifuge 50100793 Waste Disposal Solid Waste Disposal - Government Sewage Treatment POTW: Sludge Drying Bed 50100795 Waste Disposal Solid Waste Disposal - Government Sewage Treatment Sludge Storage Lagoons/Drying Beds 50100799 Waste Disposal Solid Waste Disposal - Government Sewage Treatment Other Not Classified 
A-17 

Table A-5. Solvent Utilization Crosswalk for Point Source Subtractions 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

2401005000 - Solvent Utilization; Surface Coating; Auto Refinishing: SIC 7532; Total: All Solvent Types 

40201601 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Prime Application/Electo-deposition/Dip/Spray 

40201602 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Cleaning/Pretreatment 

40201603 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Coating Mixing 

40201604 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Coating Storage 

40201605 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Equipment Cleanup 

40201606 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Topcoat Operation 

40201607 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Sealers 

40201608 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Deadeners 

40201609 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Anti-corrosion Priming 

40201619 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Prime Surfacing Operation 

40201620 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Repair Topcoat Application Area 

40201621 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Prime Coating: Solvent-borne - Automobiles 

40201622 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Prime Coating: Electro-deposition - Automobiles 

40201623 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Guide Coating: Solvent-borne - Automobiles 

40201624 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Guide Coating: Water-borne - Automobiles 

40201625 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Topcoat: Solvent-borne - Automobiles 

40201626 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Topcoat: Water-borne - Automobiles 

40201627 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Prime Coating: Solvent-borne - Light Trucks 

40201628 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Prime Coating: Electro-deposition - Light Trucks 

40201629 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Guide Coating: Solvent-borne - Light Trucks 

40201630 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Guide Coating: Water-borne - Light Trucks 
A-18 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

40201631 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Topcoat: Solvent-borne - Light Trucks 

40201632 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Topcoat: Water-borne - Light Trucks 

40201699 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Other Not Classified 

2401015000 - Solvent Utilization; Surface Coating; Factory Finished Wood: SIC 2426 thru 242; Total: All Solvent Types 

40202101 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Flatwood Products Base Coat 

40202103 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Flatwood Products Coating Mixing 

40202104 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Flatwood Products Coating Storage 

40202105 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Flatwood Products Equipment Cleanup 

40202106 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Flatwood Products Topcoat 

40202107 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Flatwood Products Filler 

40202108 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Flatwood Products Sealer 

40202109 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Flatwood Products Inks 

40202110 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Flatwood Products Grove Coat Application 

40202111 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Flatwood Products Stain Application 

40202117 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Flatwood Products Filler Sander 

40202118 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Flatwood Products Sealer Sander 

40202131 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Flatwood Products Water-borne Coating 

40202132 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Flatwood Products Solvent-borne Coating 

40202133 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Flatwood Products Ultraviolet Coating 

40202140 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Flatwood Products Surface Preparation (Includes Tempering, Sanding

Brushing, Grove Cut) 

40202199 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Flatwood Products Other Not Classified 

2401020000 - Solvent Utilization; Surface Coating; Wood Furniture: SIC 25; Total: All Solvent Types 

40201901 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Wood Furniture Surface Coating Coating Operation 

40201903 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Wood Furniture Surface Coating Coating Mixing 
A-19 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

40201904 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Wood Furniture Surface Coating Coating Storage 

40201999 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Wood Furniture Surface Coating Other Not Classified 

2401025000 - Solvent Utilization; Surface Coating; Metal Furniture: SIC 25; Total: All Solvent Types 

40202001 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Furniture Operations Coating Operation 

40202002 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Furniture Operations Cleaning/Pretreatment 

40202003 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Furniture Operations Coating Mixing 

40202004 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Furniture Operations Coating Storage 

40202005 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Furniture Operations Equipment Cleanup 

40202010 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Furniture Operations Prime Coat Application 

40202011 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Furniture Operations Prime Coat Application: Spray, High Solids 

40202012 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Furniture Operations Prime Coat Application: Spray, Water-borne 

40202013 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Furniture Operations Prime Coat Application: Dip 

40202014 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Furniture Operations Prime Coat Application: Flow Coat 

40202015 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Furniture Operations Prime Coat Application: Flashoff 

40202020 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Furniture Operations Topcoat Application 

40202021 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Furniture Operations Topcoat Application: Spray, High Solids 

40202022 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Furniture Operations Topcoat Application: Spray, Water-borne 

40202023 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Furniture Operations Topcoat Application: Dip 

40202024 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Furniture Operations Topcoat Application: Flow Coat 

40202025 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Furniture Operations Topcoat Application: Flashoff 

40202031 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Furniture Operations Single Spray Line: General 

40202032 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Furniture Operations Spray Dip Line: General ** (Use 4-02-020-37) 

40202033 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Furniture Operations Spray High Solids Coating ** (Use 4-02-020-35) 

40202034 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Furniture Operations Spray Water-borne Coating ** (Use 4-02-020-36) 
A-20 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

40202035 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Furniture Operations Single Coat Application: Spray, High Solids 

40202036 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Furniture Operations Single Coat Application: Spray, Water-borne 

40202037 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Furniture Operations Single Coat Application: Dip 

40202038 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Furniture Operations Single Coat Application: Flow Coat 

40202039 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Furniture Operations Single Coat Application: Flashoff 

40202099 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Furniture Operations Other Not Classified 

2401030000 - Solvent Utilization; Surface Coating; Paper: SIC 26; Total: All Solvent Types 

40201301 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Paper Coating Coating Operation 

40201303 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Paper Coating Coating Mixing 

40201304 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Paper Coating Coating Storage 

40201305 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Paper Coating Equipment Cleanup 

40201310 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Paper Coating Coating Application: Knife Coater 

40201320 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Paper Coating Coating Application: Reverse Roll Coater 

40201330 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Paper Coating Coating Application: Rotogravure Printer 

40201399 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Paper Coating Other Not Classified 

2401040000 - Solvent Utilization; Surface Coating; Metal Cans: SIC 341; Total: All Solvent Types 

40201702 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Can Coating Cleaning/Pretreatment 

40201703 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Can Coating Coating Mixing 

40201704 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Can Coating Coating Storage 

40201705 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Can Coating Equipment Cleanup 

40201706 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Can Coating Solvent Storage 

40201721 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Can Coating Two Piece Exterior Base Coating 

40201722 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Can Coating Interior Spray Coating 

40201723 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Can Coating Sheet Base Coating (Interior) 
A-21 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

40201724 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Can Coating Sheet Base Coating (Exterior) 

40201725 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Can Coating Side Seam Spray Coating 

40201726 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Can Coating End Sealing Compound (Also See 4-02-017-36 & -3

40201727 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Can Coating Lithography 

40201728 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Can Coating Over Varnish 

40201729 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Can Coating Exterior End Coating 

40201731 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Can Coating Three-piece Can Sheet Base Coating 

40201732 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Can Coating Three-piece Can Sheet Lithographic Coating Line 

40201733 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Can Coating Three-piece Can-side Seam Spray Coating 

40201734 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Can Coating Three-piece Can Interior Body Spray Coat 

40201735 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Can Coating Two-piece Can Coating Line 

40201736 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Can Coating Two-piece Can End Sealing Compound 

40201737 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Can Coating Three Piece Can End Sealing Compound 

40201738 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Can Coating Two Piece Can Lithographic Coating Line 

40201739 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Can Coating Three Piece Can Coating Line (All Coating Solvent 

Emission Points) 

40201799 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Can Coating Other Not Classified 

2401045000 - Solvent Utilization; Surface Coating; Metal Coils: SIC 3498; Total: All Solvent Types 

40201801 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Coil Coating Prime Coating Application 

40201802 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Coil Coating Cleaning/Pretreatment 

40201803 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Coil Coating Solvent Mixing 

40201804 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Coil Coating Solvent Storage (Use 4-07-004-01 thru 4-07-999-98 

possible) 

40201805 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Coil Coating Equipment Cleanup 

40201806 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Coil Coating Finish Coating 

40201807 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Coil Coating Coating Storage 
A-22 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

40201899 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Metal Coil Coating Other Not Classified 

2401055000 - Solvent Utilization; Surface Coating; Machinery and Equipment: SIC 35; Total: All Solvent Types 

40202501 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Miscellaneous Metal Parts Coating Operation 

40202502 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Miscellaneous Metal Parts Cleaning/Pretreatment 

40202503 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Miscellaneous Metal Parts Coating Mixing 

40202504 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Miscellaneous Metal Parts Coating Storage 

40202505 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Miscellaneous Metal Parts Equipment Cleanup 

40202510 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Miscellaneous Metal Parts Prime Coat Application 

40202511 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Miscellaneous Metal Parts Prime Coat Application: Spray, High Solids 

40202512 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Miscellaneous Metal Parts Prime Coat Application: Spray, Water-borne 

40202515 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Miscellaneous Metal Parts Prime Coat Application: Flashoff 

40202520 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Miscellaneous Metal Parts Topcoat Application 

40202521 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Miscellaneous Metal Parts Topcoat Application: Spray, High Solids 

40202522 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Miscellaneous Metal Parts Topcoat Application: Spray, Water-borne 

40202523 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Miscellaneous Metal Parts Topcoat Application: Dip 

40202524 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Miscellaneous Metal Parts Topcoat Application: Flow Coat 

40202525 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Miscellaneous Metal Parts Topcoat Application: Flashoff 

40202531 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Miscellaneous Metal Parts Conveyor Single Flow 

40202532 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Miscellaneous Metal Parts Conveyor Single Dip 

40202533 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Miscellaneous Metal Parts Conveyor Single Spray 

40202534 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Miscellaneous Metal Parts Conveyor Two Coat, Flow and Spray 

40202535 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Miscellaneous Metal Parts Conveyor Two Coat, Dip and Spray 

40202536 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Miscellaneous Metal Parts Conveyor Two Coat, Spray 

40202537 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Miscellaneous Metal Parts Manual Two Coat, Spray and Air Dry 
A-23 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

40202542 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Miscellaneous Metal Parts Single Coat Application: Spray, High Solids 

40202543 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Miscellaneous Metal Parts Single Coat Application: Spray, Water-borne 

40202544 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Miscellaneous Metal Parts Single Coat Application: Dip 

40202545 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Miscellaneous Metal Parts Single Coat Application: Flow Coat 

40202546 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Miscellaneous Metal Parts Single Coat Application: Flashoff 

40202599 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Miscellaneous Metal Parts Other Not Classified 

2401060000 - Solvent Utilization; Surface Coating; Large Appliances: SIC 363; Total: All Solvent Types 

40201401 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Appliances Prime Coating Operation 

40201402 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Appliances Cleaning/Pretreatment 

40201403 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Appliances Coating Mixing 

40201404 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Appliances Coating Storage 

40201405 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Appliances Equipment Cleanup 

40201406 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Appliances Topcoat Spray 

40201410 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Appliances Prime Coat Flashoff 

40201411 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Appliances Topcoat Flashoff 

40201431 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Appliances Coating Line: General 

40201432 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Appliances Prime Air Spray 

40201433 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Appliances Prime Electrostatic Spray 

40201434 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Appliances Prime Flow Coat 

40201435 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Appliances Prime Dip Coat 

40201436 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Appliances Prime Electro-deposition 

40201437 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Appliances Top Air Spray 

40201438 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Appliances Top Electrostatic Spray 

40201499 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Appliances Other Not Classified 
A-24 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

2401065000 - Solvent Utilization; Surface Coating; Electronic and Other Electrical: SIC 36 – 363; Total: All Solvent Types 

40203001 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Semiconductors Specify Solvent 

2401070000 - Solvent Utilization; Surface Coating; Motor Vehicles: SIC 371; Total: All Solvent Types 

40201601 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Prime Application/Electo-deposition/Dip/Spray 

40201602 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Cleaning/Pretreatment 

40201603 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Coating Mixing 

40201604 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Coating Storage 

40201605 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Equipment Cleanup 

40201606 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Topcoat Operation 

40201607 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Sealers 

40201608 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Deadeners 

40201609 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Anti-corrosion Priming 

40201619 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Prime Surfacing Operation 

40201620 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Repair Topcoat Application Area 

40201621 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Prime Coating: Solvent-borne - Automobiles 

40201622 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Prime Coating: Electro-deposition - Automobiles 

40201623 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Guide Coating: Solvent-borne - Automobiles 

40201624 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Guide Coating: Water-borne - Automobiles 

40201625 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Topcoat: Solvent-borne - Automobiles 

40201626 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Topcoat: Water-borne - Automobiles 

40201627 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Prime Coating: Solvent-borne - Light Trucks 

40201628 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Prime Coating: Electro-deposition - Light Trucks 

40201629 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Guide Coating: Solvent-borne - Light Trucks 

40201630 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Guide Coating: Water-borne - Light Trucks 
A-25 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

40201631 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Topcoat: Solvent-borne - Light Trucks 

40201632 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Topcoat: Water-borne - Light Trucks 

40201699 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Automobiles and Light Trucks Other Not Classified 

2401075000 - Solvent Utilization; Surface Coating; Aircraft: SIC 372; Total: All Solvent Types 

40202401 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Aircraft Prime Coating Operation 

40202402 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Aircraft Cleaning/Pretreatment 

40202403 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Aircraft Coating Mixing 

40202404 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Aircraft Coating Storage 

40202405 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Aircraft Equipment Cleanup 

40202406 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Aircraft Topcoat Operation 

40202499 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Aircraft Other Not Classified 

2401080000 - Solvent Utilization; Surface Coating; Marine: SIC 373; Total: All Solvent Types 

40202301 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Ships Prime Coating Operation 

40202302 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Ships Cleaning/Pretreatment 

40202303 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Ships Coating Mixing 

40202304 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Ships Coating Storage 

40202305 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Ships Equipment Cleanup 

40202306 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Ships Topcoat Operation 

40202399 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Large Ships Other Not Classified 

2401090000 - Solvent Utilization; Surface Coating; Miscellaneous Manufacturing; Total: All Solvent Types 

40202201 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Plastic Parts Coating Operation 

40202202 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Plastic Parts Cleaning/Pretreatment 

40202203 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Plastic Parts Coating Mixing 

40202204 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Plastic Parts Coating Storage 
A-26 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

40202205 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Plastic Parts Equipment Cleanup 

40202206 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Plastic Parts Business: Baseline Coating Mix 

40202207 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Plastic Parts Business: Low Solids Solvent-borne Coating 

40202208 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Plastic Parts Business: Medium Solids Solvent-borne Coating 

40202209 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Plastic Parts Business: High Solids Coating (25% Efficiency) 

40202210 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Plastic Parts Business: High Solids Solvent-borne Coating (40% 

Efficiency) 

40202211 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Plastic Parts Business: Water-borne Coating 

40202212 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Plastic Parts Business: Low Solids Solvent-borne EMI/RFI Shieldi

Coating 

40202213 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Plastic Parts Business: Higher Solids Solvent-borne EMI/RFI Shield

Coating 

40202214 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Plastic Parts Business: Water-borne EMI/RFI Shielding Coating 

40202215 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Plastic Parts Business: Zinc Arc Spray 

40202220 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Plastic Parts Prime Coat Application 

40202229 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Plastic Parts Prime Coat Flashoff 

40202230 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Plastic Parts Color Coat Application 

40202239 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Plastic Parts Color Coat Flashoff 

40202240 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Plastic Parts Topcoat/Texture Coat Application 

40202249 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Plastic Parts Topcoat/Texture Coat Flashoff 

40202250 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Plastic Parts EMI/RFI Shielding Coat Application 

40202259 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Plastic Parts EMI/RFI Shielding Coat Flashoff 

40202270 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Plastic Parts Sanding/Grit Blasting Prior to EMI/RFI Shielding Co

Application 

40202280 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Plastic Parts Maskant Application 

40202299 Petroleum and Solvent 

Evaporation 

Surface Coating Operations Plastic Parts Other Not Classified 

2415000000 - Solvent Utilization; Degreasing; All Processes/All Industries; Total: All Solvent Types 

40100201 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing Stoddard (Petroleum Solvent): Open-top Vapor 

Degreasing 
A-27 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

40100202 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing 1,1,1-Trichloroethane (Methyl Chloroform): Open-to

Vapor Degreasing 

40100203 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing Perchloroethylene: Open-top Vapor Degreasing 

40100204 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing Methylene Chloride: Open-top Vapor Degreasing 

40100205 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing Trichloroethylene: Open-top Vapor Degreasing 

40100206 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing Toluene: Open-top Vapor Degreasing 

40100207 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing Trichlorotrifluoroethane (Freon): Open-top Vapor 

Degreasing 

40100208 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing Chlorosolve: Open-top Vapor Degreasing 

40100209 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing Butyl Acetate: Open-top Vapor Degreasing 

40100215 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing Entire Unit: Open-top Vapor Degreasing 

40100216 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing Degreaser: Entire Unit 

40100217 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing Entire Unit 

40100221 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing Stoddard (Petroleum Solvent): Conveyorized Vapo

Degreasing 

40100222 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing 1,1,1-Trichloroethane (Methyl Chloroform):Conveyoriz

Vapor Degreaser 

40100223 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing Perchloroethylene: Conveyorized Vapor Degreasin

40100224 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing Methylene Chloride: Conveyorized Vapor Degreasin

40100225 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing Trichloroethylene: Conveyorized Vapor Degreasing 

40100235 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing Entire Unit: with Vaporized Solvent: Conveyorized Va

Degreasing 

40100236 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing Entire Unit: with Non-boiling Solvent: Conveyorized Va

Degreasing 

40100251 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing Stoddard (Petroleum Solvent): General Degreasing U

40100252 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing 1,1,1-Trichloroethane (Methyl Chloroform): Genera

Degreasing Units 

40100253 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing Perchloroethylene: General Degreasing Units 

40100254 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing Methylene Chloride: General Degreasing Units 

40100255 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing Trichloroethylene: General Degreasing Units 

40100256 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing Toluene: General Degreasing Units 
A-28 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

40100257 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing Trichlorotrifluoroethane (Freon): General Degreasin

Units 

40100258 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing Trichlorofluoromethane: General Degreasing Units 

40100259 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing 1,1,1-Trichloroethane (Methyl Chloroform): Genera

Degreasing Units 

40100295 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing Other Not Classified: General Degreasing Units 

40100296 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing Other Not Classified: General Degreasing Units 

40100297 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing Other Not Classified: Open-top Vapor Degreasing 

40100298 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing Other Not Classified: Conveyorized Vapor Degreasin

40100299 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Degreasing Other Not Classified: Open-top Vapor Degreasing 

40100301 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Cold Solvent Cleaning/Stripping Methanol 

40100302 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Cold Solvent Cleaning/Stripping Methylene Chloride 

40100303 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Cold Solvent Cleaning/Stripping Stoddard (Petroleum Solvent) 

40100304 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Cold Solvent Cleaning/Stripping Perchloroethylene 

40100305 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Cold Solvent Cleaning/Stripping 1,1,1-Trichloroethane (Methyl Chloroform) 

40100306 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Cold Solvent Cleaning/Stripping Trichloroethylene 

40100307 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Cold Solvent Cleaning/Stripping Isopropyl Alcohol 

40100308 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Cold Solvent Cleaning/Stripping Methyl Ethyl Ketone 

40100309 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Cold Solvent Cleaning/Stripping Freon 

40100310 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Cold Solvent Cleaning/Stripping Acetone 

40100311 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Cold Solvent Cleaning/Stripping Glycol Ethers 

40100335 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Cold Solvent Cleaning/Stripping Entire Unit 

40100336 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Cold Solvent Cleaning/Stripping Degreaser: Entire Unit 

40100398 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Cold Solvent Cleaning/Stripping Other Not Classified 

40100399 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Cold Solvent Cleaning/Stripping Other Not Classified 

40100401 Petroleum and Solvent 

Evaporation 

Organic Solvent Evaporation Knit Fabric Scouring with 

Chlorinated Solvent 

Perchloroethylene 
A-29 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

2425000000 - Solvent Utilization; Graphic Arts; All Processes; Total: All Solvent Types

40500101 Petroleum and Solvent 

Evaporation 

Printing/Publishing Drying Dryer 

40500199 Petroleum and Solvent 

Evaporation 

Printing/Publishing Drying Dryer 

40500201 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Letter Press: 2751 

40500202 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Ink Thinning Solvent (Kerosene) 

40500203 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Ink Thinning Solvents (Mineral Solvents) 

40500211 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Letter Press: 2751 

40500212 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Printing: Letter Press 

40500215 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Letterpress: Cleaning Solution 

40500301 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Printing: Flexographic 

40500302 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Ink Thinning Solvent (Carbitol) 

40500303 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Ink Thinning Solvent (Cellosolve) 

40500304 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Ink Thinning Solvent (Ethyl Alcohol) 

40500305 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Ink Thinning Solvent (Isopropyl Alcohol) 

40500306 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Ink Thinning Solvent (n-Propyl Alcohol) 

40500307 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Ink Thinning Solvent (Naphtha) 

40500311 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Printing: Flexographic 

40500312 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Printing: Flexographic 

40500314 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Printing: Flexographic: Propyl Alcohol Cleanup 

40500315 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Flexographic: Steam: Water-based 

40500316 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Flexographic: Steam: Water-based 

40500317 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Flexographic: Steam: Water-based 

40500318 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Flexographic: Steam: Water-based in Ink 

40500319 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Flexographic: Steam: Water-based Ink Storage 
A-30 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

40500401 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Lithographic: 2752 

40500411 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Lithographic: 2752 

40500412 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Lithographic: 2752 

40500413 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Lithographic: Isopropyl Alcohol Cleanup 

40500414 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Flexographic: Propyl Alcohol Cleanup 

40500415 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Offset Lithography: Dampening Solution with Alcoho

Substitute 

40500416 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Offset Lithography: Dampening Solution with High Sol

Content 

40500417 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Offset Lithography: Cleaning Solution: Water-based 

40500418 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Offset Lithography: Dampening Solution with Isoprop

Alcohol 

40500421 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Offset Lithography: Heatset Ink Mixing 

40500422 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Offset Lithography: Heatset Solvent Storage 

40500431 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Offset Lithography: Nonheated Lithographic Inks 

40500432 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Offset Lithography: Nonheated Lithographic Inks 

40500433 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Offset Lithography: Nonheated Lithographic Inks 

40500501 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Gravure: 2754 

40500502 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Ink Thinning Solvent: Dimethylformamide 

40500503 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Ink Thinning Solvent: Ethyl Acetate 

40500506 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Ink Thinning Solvent: Methyl Ethyl Ketone 

40500507 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Ink Thinning Solvent: Methyl Isobutyl Ketone 

40500510 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Ink Thinning Solvent: Toluene 

40500511 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Gravure: 2754 

40500512 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Gravure: 2754 

40500513 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Gravure: 2754 

40500514 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Gravure: Cleanup Solvent 
A-31 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

40500597 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Other Not Classified 

40500598 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Ink Thinning Solvent: Other Not Specified 

40500599 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Ink Thinning Solvent: Other Not Specified 

40500601 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Ink Mixing 

40500701 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Solvent Storage 

40500801 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Screen Printing 

40500802 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Fugitive Emissions: Cleaning Rags 

40500811 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Screen Printing 

40500812 Petroleum and Solvent 

Evaporation 

Printing/Publishing General Screen Printing 

40588801 Petroleum and Solvent 

Evaporation 

Printing/Publishing Fugitive Emissions Specify in Comments Field 

40588802 Petroleum and Solvent 

Evaporation 

Printing/Publishing Fugitive Emissions Specify in Comments Field 

40588803 Petroleum and Solvent 

Evaporation 

Printing/Publishing Fugitive Emissions Specify in Comments Field 

40588804 Petroleum and Solvent 

Evaporation 

Printing/Publishing Fugitive Emissions Specify in Comments Field 

40588805 Petroleum and Solvent 

Evaporation 

Printing/Publishing Fugitive Emissions Specify in Comments Field 
A-32 

Table A-6. Gasoline Distribution Crosswalk for Point Source Subtractions 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

2501050120 - Storage and Transport; Petroleum and Petroleum Product Storage; Bulk Terminals: All Evaporative Losses; Gasoline 

40400101 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 13: Breathing Loss (67000 Bbl Capacity) - Fixed Roof Tank 40400102 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 10: Breathing Loss (67000 Bbl Capacity) - Fixed Roof Tank 40400103 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 7: Breathing Loss (67000 Bbl. Capacity) - Fixed Roof Tank 40400104 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 13: Breathing Loss (250000 Bbl Capacity)-Fixed Roof Tank 

40400105 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 10: Breathing Loss (250000 Bbl Capacity)-Fixed Roof Tank 

40400106 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 7: Breathing Loss (250000 Bbl Capacity) - Fixed Roof Tank 

40400107 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 13: Working Loss (Diam. Independent) - Fixed Roof Tank 

40400108 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 10: Working Loss (Diam. Independent) - Fixed Roof Tank 

40400109 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 7: Working Loss (Diam. Independent) - Fixed Roof Tank 

40400110 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 13: Standing Loss (67000 Bbl Capacity)-Float. Roof Tank 

40400111 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 10: Standing Loss (67000 Bbl Capacity)-Float. Roof Tank 

40400112 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 7: Standing Loss (67000 Bbl Capacity)- Floating Roof Tank 40400113 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 13: Standing Loss (250000 Bbl Cap.) - Floating Roof Tank 

40400114 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 10: Standing Loss (250000 Bbl Cap.) - Floating Roof Tank 

40400115 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 7: Standing Loss (250000 Bbl Cap.) - Floating Roof Tank 

40400116 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 13/10/7: Withdrawal Loss (67000 Bbl Cap.) - Float Rf Tnk 

40400117 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 13/10/7: Withdrawal Loss (250000 Bbl Cap.) - Float Rf Tnk 

40400118 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 13: Filling Loss (10500 Bbl Cap.) - Variable Vapor Space 

40400119 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 10: Filling Loss (10500 Bbl Cap.) - Variable Vapor Space 40400120 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 7: Filling Loss (10500 Bbl Cap.) - Variable Vapor Space 

40400131 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 13: Standing Loss - Ext. Floating Roof w/ Primary Seal 

40400132 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 10: Standing Loss - Ext. Floating Roof w/ Primary Seal 
A-33 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

40400133 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 7: Standing Loss - External Floating Roof w/ Primary Seal 40400141 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 13: Standing Loss - Ext. Floating Roof w/ Secondary Seal 

40400142 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 10: Standing Loss - Ext. Floating Roof w/ Secondary Seal 

40400143 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 7: Standing Loss - Ext. Floating Roof w/ Secondary Seal 

40400148 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 13/10/7: Withdrawal Loss - Ext. Float Roof (Pri/Sec Seal) 

40400150 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Miscellaneous Losses/Leaks: Loading Racks 

40400151 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Valves, Flanges, and Pumps 

40400152 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Vapor Collection Losses 

40400153 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Vapor Control Unit Losses 

40400161 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 13: Standing Loss - Int. Floating Roof w/ Primary Seal 

40400162 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 10: Standing Loss - Int. Floating Roof w/ Primary Seal 

40400163 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 7: Standing Loss - Internal Floating Roof w/ Primary Seal 40400171 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 13: Standing Loss - Int. Floating Roof w/ Secondary Seal 

40400172 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 10: Standing Loss - Int. Floating Roof w/ Secondary Seal 

40400173 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 7: Standing Loss - Int. Floating Roof w/ Secondary Seal 

40400178 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Gasoline RVP 13/10/7: Withdrawal Loss - Int. Float Roof (Pri/Sec Seal) 

2501055120 - Storage and Transport; Petroleum and Petroleum Product Storage; Bulk Plants: All Evaporative Losses; Gasoline 

40400201 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Gasoline RVP 13: Breathing Loss (67000 Bbl Capacity) - Fixed Roof Tank 40400202 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Gasoline RVP 10: Breathing Loss (67000 Bbl Capacity) - Fixed Roof Tank 

40400203 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Gasoline RVP 7: Breathing Loss (67000 Bbl. Capacity) - Fixed Roof Tank 

40400204 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Gasoline RVP 13: Working Loss (67000 Bbl. Capacity) - Fixed Roof Tank 

40400205 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Gasoline RVP 10: Working Loss (67000 Bbl. Capacity) - Fixed Roof Tank 

40400206 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Gasoline RVP 7: Working Loss (67000 Bbl. Capacity) - Fixed Roof Tank 

40400207 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Gasoline RVP 13: Standing Loss (67000 Bbl Cap.) - Floating Roof Tank 
A-34 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

40400208 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Gasoline RVP 10: Standing Loss (67000 Bbl Cap.) - Floating Roof Tank 40400209 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Gasoline RVP 7: Standing Loss (67000 Bbl Cap.) - Floating Roof Tank 

40400210 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Gasoline RVP 13/10/7: Withdrawal Loss (67000 Bbl Cap.) - Float Rf Tnk 

40400211 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Gasoline RVP 13: Filling Loss (10500 Bbl Cap.) - Variable Vapor Space 

40400212 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Gasoline RVP 10: Filling Loss (10500 Bbl Cap.) - Variable Vapor Space 

40400213 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Gasoline RVP 7: Filling Loss (10500 Bbl Cap.) - Variable Vapor Space 

40400231 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Gasoline RVP 13: Standing Loss - Ext. Floating Roof w/ Primary Seal 

40400232 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Gasoline RVP 10: Standing Loss - Ext. Floating Roof w/ Primary Seal 

40400233 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Gasoline RVP 7: Standing Loss - External Floating Roof w/ Primary Seal 

40400241 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Gasoline RVP 13: Standing Loss - Ext. Floating Roof w/ Secondary Seal 

40400242 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Gasoline RVP 10: Standing Loss - Ext. Floating Roof w/ Secondary Seal 

40400243 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Gasoline RVP 7: Standing Loss - Ext. Floating Roof w/ Secondary Seal 

40400248 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Gasoline RVP 10/13/7: Withdrawal Loss - Ext. Float Roof (Pri/Sec Seal) 

40400250 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Loading Racks 

40400251 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Valves, Flanges, and Pumps 

40400252 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Miscellaneous Losses/Leaks: Vapor Collection Losses 

40400253 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Miscellaneous Losses/Leaks: Vapor Control Unit Losses 

40400261 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Gasoline RVP 13: Standing Loss - Int. Floating Roof w/ Primary Seal 

40400262 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Gasoline RVP 10: Standing Loss - Int. Floating Roof w/ Primary Seal 

40400263 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Gasoline RVP 7: Standing Loss - Internal Floating Roof w/ Primary Seal 

40400271 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Gasoline RVP 13: Standing Loss - Int. Floating Roof w/ Secondary Seal 

40400272 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Gasoline RVP 10: Standing Loss - Int. Floating Roof w/ Secondary Seal 

40400273 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Gasoline RVP 7: Standing Loss - Int. Floating Roof w/ Secondary Seal 

40400278 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Gasoline RVP 10/13/7: Withdrawal Loss - Int. Float Roof (Pri/Sec Seal) 
A-35 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

40400401 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Petrol Prods - Undergrd Tanks Gasoline RVP 13: Breathing Loss 40400402 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Petrol Prods - Undergrd Tanks Gasoline RVP 13: Working Loss 

40400403 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Petrol Prods - Undergrd Tanks Gasoline RVP 10: Breathing Loss 

40400404 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Petrol Prods - Undergrd Tanks Gasoline RVP 10: Working Loss 

40400405 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Petrol Prods - Undergrd Tanks Gasoline RVP 7: Breathing Loss 

40400406 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Petrol Prods - Undergrd Tanks Gasoline RVP 7: Working Loss 

40600101 Petroleum and Solvent Evaporation Transport. & Marketing of Petrol 

Product 

Tank Cars/Trucks Gasoline: Splash Loading ** 

40600126 Petroleum and Solvent Evaporation Transport. & Marketing of Petrol 

Product 

Tank Cars/Trucks Gasoline: Submerged Loading ** 

40600131 Petroleum and Solvent Evaporation Transport. & Marketing of Petrol 

Product 

Tank Cars/Trucks Gasoline: Submerged Loading (Normal Service) 

40600136 Petroleum and Solvent Evaporation Transport. & Marketing of Petrol 

Product 

Tank Cars/Trucks Gasoline: Splash Loading (Normal Service) 

40600141 Petroleum and Solvent Evaporation Transport. & Marketing of Petrol 

Product 

Tank Cars/Trucks Gasoline: Submerged Loading (Balanced 

Service) 

40600144 Petroleum and Solvent Evaporation Transport. & Marketing of Petrol 

Product 

Tank Cars/Trucks Gasoline: Splash Loading (Balanced Service) 

40600147 Petroleum and Solvent Evaporation Transportation and Marketing of 

Petroleum Products 

Tank Cars/Trucks Gasoline: Submerged Loading (Clean Tanks) 

2501060051 - Storage and Transport; Petroleum and Petroleum Product Storage; Gasoline Service Stations; Stage 1: Submerged Filling 

40600302 Petroleum and Solvent Evaporation Transportation and Marketing of 

Petroleum Products 

Gasoline Retail Operations 

- Stage I 

Submerged Filling w/o Controls 

40600305 Petroleum and Solvent Evaporation Transportation and Marketing of 

Petroleum Products 

Gasoline Retail Operations 

- Stage I 

Unloading ** 

40600399 Petroleum and Solvent Evaporation Transportation and Marketing of 

Petroleum Products 

Gasoline Retail Operations 

- Stage I 

Not Classified ** 

40600702 Petroleum and Solvent Evaporation Transportation and Marketing of 

Petroleum Products 

Consumer (Corporate) 

Fleet Refueling - Stage I 

Submerged Filling w/o Controls 
A-36 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

2501060052 - Storage and Transport; Petroleum and Petroleum Product Storage; Gasoline Service Stations; Stage 1: Splash Filling

40600301 Petroleum and Solvent Evaporation Transportation and Marketing of 

Petroleum Products 

Gasoline Retail Operations 

- Stage I 

Splash Filling 

40600305 Petroleum and Solvent Evaporation Transportation and Marketing of 

Petroleum Products 

Gasoline Retail Operations 

- Stage I 

Unloading ** 

40600399 Petroleum and Solvent Evaporation Transportation and Marketing of 

Petroleum Products 

Gasoline Retail Operations 

- Stage I 

Not Classified ** 

40600701 Petroleum and Solvent Evaporation Transportation and Marketing of 

Petroleum Products 

Consumer (Corporate) 

Fleet Refueling - Stage I 

Splash Filling 

2501060053 - Storage and Transport; Petroleum and Petroleum Product Storage; Gasoline Service Stations; Stage 1: Balanced Submerged Filli

40600305 Petroleum and Solvent Evaporation Transportation and Marketing of 

Petroleum Products 

Gasoline Retail Operations 

- Stage I 

Unloading ** 

40600306 Petroleum and Solvent Evaporation Transportation and Marketing of 

Petroleum Products 

Gasoline Retail Operations 

- Stage I 

Balanced Submerged Filling 

40600399 Petroleum and Solvent Evaporation Transportation and Marketing of 

Petroleum Products 

Gasoline Retail Operations 

- Stage I 

Not Classified ** 

40600706 Petroleum and Solvent Evaporation Transportation and Marketing of 

Petroleum Products 

Consumer (Corporate) 

Fleet Refueling - Stage I 

Balanced Submerged Filling 

2501060100 - Storage and Transport; Petroleum and Petroleum Product Storage; Gasoline Service Stations; Stage 2: Total 

40600401 Petroleum and Solvent Evaporation Transportation and Marketing of 

Petroleum Products 

Filling Vehicle Gas Tanks - 

Stage II 

Vapor Loss w/o Controls 

40600402 Petroleum and Solvent Evaporation Transportation and Marketing of 

Petroleum Products 

Filling Vehicle Gas Tanks - 

Stage II 

Liquid Spill Loss w/o Controls 

40600403 Petroleum and Solvent Evaporation Transportation and Marketing of 

Petroleum Products 

Filling Vehicle Gas Tanks - 

Stage II 

Vapor Loss w/o Controls 

40600499 Petroleum and Solvent Evaporation Transportation and Marketing of 

Petroleum Products 

Filling Vehicle Gas Tanks - 

Stage II 

Not Classified ** 

40600601 Petroleum and Solvent Evaporation Transportation and Marketing of 

Petroleum Products 

Consumer (Corporate) 

Fleet Refueling - Stage II 

Vapor Loss w/o Controls 

40600602 Petroleum and Solvent Evaporation Transportation and Marketing of 

Petroleum Products 

Consumer (Corporate) 

Fleet Refueling - Stage II 

Liquid Spill Loss w/o Controls 

40600603 Petroleum and Solvent Evaporation Transportation and Marketing of 

Petroleum Products 

Consumer (Corporate) 

Fleet Refueling - Stage II 

Vapor Loss w/controls 
A-37 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

2501060201 – Storage and Transport; Petroleum and Petroleum Product Transport; Gasoline Service Stations; Underground Tank: Breathing and Em

40600307 Petroleum and Solvent Evaporation Transportation and Marketing of 

Petroleum Products 

Gasoline Retail Operations 

- Stage I 

Underground Tank Breathing and Emptying 

40600707 Petroleum and Solvent Evaporation Transportation and Marketing of 

Petroleum Products 

Consumer (Corporate) 

Fleet Refueling - Stage I 

Underground Tank Breathing and Emptying 

2505030120 - Storage and Transport; Petroleum and Petroleum Product Transport; Truck; Gasoline 

40400154 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Terminals Tank Truck Vapor Leaks 40400254 Petroleum and Solvent Evaporation Petroleum Liquids Storage (nonRefinery) Bulk Plants Tank Truck Vapor Losses 

40600162 Petroleum and Solvent Evaporation Transportation and Marketing of 

Petroleum Products 

Tank Cars and Trucks Gasoline: Loaded with Fuel (Transit Losses) 

40600163 Petroleum and Solvent Evaporation Transportation and Marketing of 

Petroleum Products 

Tank Cars and Trucks Gasoline: Return with Vapor (Transit Losses) 
A-38 

Table A-7. Mining and Quarrying Crosswalk for Point Source Subtraction 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

2325000000 – Industrial Processes; Mining and Quarrying: SIC 14; All Processes; Total 

30302401 Industrial Processes Primary Metal Production Metal Mining (General Processes) Primary Crushing: Low Mo30302402 Industrial Processes Primary Metal Production Metal Mining (General Processes) Secondary Crushing: Low M30302403 Industrial Processes Primary Metal Production Metal Mining (General Processes) Tertiary Crushing: Low Mo

30302404 Industrial Processes Primary Metal Production Metal Mining (General Processes) Material Handling: Low Mo30302405 Industrial Processes Primary Metal Production Metal Mining (General Processes) Primary Crushing: High Mo

30302406 Industrial Processes Primary Metal Production Metal Mining (General Processes) Secondary Crushing: High M

30302407 Industrial Processes Primary Metal Production Metal Mining (General Processes) Tertiary Crushing: High Mo30302408 Industrial Processes Primary Metal Production Metal Mining (General Processes) Material Handling: High Mo

30302409 Industrial Processes Primary Metal Production Metal Mining (General Processes) Dry Grinding with Air Co

30302410 Industrial Processes Primary Metal Production Metal Mining (General Processes) Dry Grinding without Air C30302411 Industrial Processes Primary Metal Production Metal Mining (General Processes) Ore Drying 30303101 Industrial Processes Primary Metal Production Leadbearing Ore Crushing and Grinding Lead Ore w/ 5.1% Lead 

30303102 Industrial Processes Primary Metal Production Leadbearing Ore Crushing and Grinding Zinc Ore w/ 0.2% Lead 

30303103 Industrial Processes Primary Metal Production Leadbearing Ore Crushing and Grinding Copper Ore w/ 0.2% Lead 

30303104 Industrial Processes Primary Metal Production Leadbearing Ore Crushing and Grinding Lead-Zinc Ore w/ 2% Lea

30303105 Industrial Processes Primary Metal Production Leadbearing Ore Crushing and Grinding Copper-Lead Ore w/ 2% Le

30303106 Industrial Processes Primary Metal Production Leadbearing Ore Crushing and Grinding Copper-Zinc Ore w/ 0.2% Le

30303107 Industrial Processes Primary Metal Production Leadbearing Ore Crushing and Grinding Copper-Lead-Zinc w/ 2% Le

30501001 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Fluidized Bed 30501002 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Flash or Suspensi30501003 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Multilouvered 30501004 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Rotary 30501005 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Cascade 30501006 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Continuous Carrie

30501007 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Screen 

30501008 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Unloading 30501009 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Raw Coal Storag30501010 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Crushing 30501011 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Coal Transfer 30501012 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Screening 30501013 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Air Tables 

30501014 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Cleaned Coal Stora30501015 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Loading 

30501016 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Loading: Clean Co

30501017 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Secondary Crushi

30501021 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Overburden Remo

30501022 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Drilling/Blasting 

30501023 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Loading 

30501024 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Hauling 

30501030 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Topsoil Remova30501031 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Scrapers: Travel Mo30501032 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Topsoil Unloadin30501033 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Overburden 30501034 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Coal Seam: Drillin
A-39 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

30501035 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Blasting: Coal Overbu30501036 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Dragline: Overburden R

30501037 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Truck Loading: Overb

30501038 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Truck Loading: Co30501039 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Hauling: Haul Truc30501040 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Truck Unloading: End Du30501041 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Truck Unloading: Bottom D

30501042 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Truck Unloading: Bottom Dump 30501043 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Open Storage Pile: C

30501044 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Train Loading: Co

30501045 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Bulldozing: Overbur

30501046 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Bulldozing: Coa

30501047 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Grading 

30501048 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Overburden Replace30501049 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Wind Erosion: Exposed 

30501050 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Vehicle Traffic: Light/Mediu30501051 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Surface Mining Operations: Ope

Spoils 

30501060 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Surface Mining Operations: Pr30501061 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Surface Mining Operations: Sec

30501062 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Surface Mining Operations30501090 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Haul Roads: Gene

30501099 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305310) Other Not Classifie

30501640 Industrial Processes Mineral Products Lime Manufacture Vehicle Traffic 30501650 Industrial Processes Mineral Products Lime Manufacture Quarrying Raw Limes30502009 Industrial Processes Mineral Products Stone Quarrying - Processing (See also 305320) Blasting: Genera

30502010 Industrial Processes Mineral Products Stone Quarrying - Processing (See also 305320) Drilling 

30502018 Industrial Processes Mineral Products Stone Quarrying - Processing (See also 305320) Drilling with Liquid Inje

30502020 Industrial Processes Mineral Products Stone Quarrying - Processing (See also 305320) Drilling 

30502513 Industrial Processes Mineral Products Construction Sand and Gravel Excavating 30502514 Industrial Processes Mineral Products Construction Sand and Gravel Drilling and Blastin30503101 Industrial Processes Mineral Products Asbestos Mining Surface Blasting 30503102 Industrial Processes Mineral Products Asbestos Mining Surface Drilling 30503103 Industrial Processes Mineral Products Asbestos Mining Cobbing 

30503108 Industrial Processes Mineral Products Asbestos Mining Overburden Stripp30503109 Industrial Processes Mineral Products Asbestos Mining Ventilation of Process Op

30503199 Industrial Processes Mineral Products Asbestos Mining Other Not Classifie30504001 Industrial Processes Mineral Products Mining and Quarrying of Nonmetallic Minerals Open Pit Blasting 

30504002 Industrial Processes Mineral Products Mining and Quarrying of Nonmetallic Minerals Open Pit Drilling 

30504003 Industrial Processes Mineral Products Mining and Quarrying of Nonmetallic Minerals Open Pit Cobbing 

30504010 Industrial Processes Mineral Products Mining and Quarrying of Nonmetallic Minerals Underground Ventila

30504024 Industrial Processes Mineral Products Mining and Quarrying of Nonmetallic Minerals Overburden Stripp

30504101 Industrial Processes Mineral Products Clay processing: Kaolin Mining 30504201 Industrial Processes Mineral Products Clay processing: Ball clay Mining 30504301 Industrial Processes Mineral Products Clay processing: Fire clay Mining 30504401 Industrial Processes Mineral Products Clay processing: Bentonite Mining 30504501 Industrial Processes Mineral Products Clay processing: Fullers earth Mining 30504601 Industrial Processes Mineral Products Clay processing: Common clay and shale, NEC Mining 

30531001 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305010) Fluidized Bed 
A-40 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

30531002 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305010) Flash or Suspensi30531003 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305010) Multilouvered 30531004 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305010) Rotary 30531005 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305010) Cascade 30531006 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305010) Continuous Carrie

30531007 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305010) Screen 

30531008 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305010) Unloading 30531009 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305010) Raw Coal Storag30531010 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305010) Crushing 30531011 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305010) Coal Transfer 30531012 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305010) Screening 30531013 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305010) Air Tables 30531014 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305010) Cleaned Coal Stora30531015 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305010) Loading 

30531016 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305010) Loading: Clean Co

30531017 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305010) Secondary Crushi

30531090 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305010) Haul Roads: Gene30531099 Industrial Processes Mineral Products Coal Mining, Cleaning, and Material Handling (See 305010) Other Not Classifie30532009 Industrial Processes Mineral Products Stone Quarrying - Processing (See also 305020 for diff. units) Blasting: Genera

30532010 Industrial Processes Mineral Products Stone Quarrying - Processing (See also 305020 for diff. units) Drilling 

30532011 Industrial Processes Mineral Products Stone Quarrying - Processing (See also 305020 for diff. units) Hauling 

30532020 Industrial Processes Mineral Products Stone Quarrying - Processing (See also 305020 for diff. units) Drilling 

30532090 Industrial Processes Mineral Products Stone Quarrying - Processing (See also 305020 for diff. units) Haul Roads - Gene
A-41 

Table A-8. Agriculture Production Crosswalk for Livestock 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

2805001100 - Miscellaneous Area Sources; Agriculture Production – Livestock; Beef cattle - finishing operations on feedlots (drylots); Confinem

30202001 Industrial Processes Food and Agriculture Beef Cattle Feedlots Feedlots: General Apportion 30202002 Industrial Processes Food and Agriculture Beef Cattle Feedlots Feedlots: General Apportion 

2805001200 - Miscellaneous Area Sources; Agriculture Production – Livestock; Beef cattle - finishing operations on feedlots (drylots); Manure handling 

30202001 Industrial Processes Food and Agriculture Beef Cattle Feedlots Feedlots: General Apportion 30202002 Industrial Processes Food and Agriculture Beef Cattle Feedlots Feedlots: General Apportion 

2805001300 - Miscellaneous Area Sources; Agriculture Production – Livestock; Beef cattle - finishing operations on feedlots (drylots); Land application 

30202001 Industrial Processes Food and Agriculture Beef Cattle Feedlots Feedlots: General Apportion 30202002 Industrial Processes Food and Agriculture Beef Cattle Feedlots Feedlots: General Apportion 

2805003100 - Miscellaneous Area Sources; Agriculture Production – Livestock; Beef cattle - finishing operations on pasture/range; Confineme

30202001 Industrial Processes Food and Agriculture Beef Cattle Feedlots Feedlots: General Apportion 30202002 Industrial Processes Food and Agriculture Beef Cattle Feedlots Feedlots: General Apportion 

2805007100 - Miscellaneous Area Sources; Agriculture Production – Livestock; Poultry production - layers with dry manure management systems; Co

30202101 Industrial Processes Food and Agriculture Eggs and Poultry Production Manure Handling: Dry Apportion 30202102 Industrial Processes Food and Agriculture Eggs and Poultry Production Manure Handling: Dry Apportion 

2805007300 - Miscellaneous Area Sources; Agriculture Production – Livestock; Poultry production - layers with dry manure management systems; Land appli

30202101 Industrial Processes Food and Agriculture Eggs and Poultry Production Manure Handling: Dry Apportion 30202102 Industrial Processes Food and Agriculture Eggs and Poultry Production Manure Handling: Dry Apportion 

2805008100 - Miscellaneous Area Sources; Agriculture Production – Livestock; Poultry production - layers with wet manure management systems; Co

30202105 Industrial Processes Food and Agriculture Eggs and Poultry Production Manure Handling: Wet Apportion 30202106 Industrial Processes Food and Agriculture Eggs and Poultry Production Manure Handling: Wet Apportion 

2805008200 - Miscellaneous Area Sources; Agriculture Production – Livestock; Poultry production - layers with wet manure management systems; Manure han

30202105 Industrial Processes Food and Agriculture Eggs and Poultry Production Manure Handling: Wet Apportion 
A-42 

Point SCC SCC1 DESC SCC3 DESC SCC6 DESC SCC8 DESC 

30202106 Industrial Processes Food and Agriculture Eggs and Poultry Production Manure Handling: Wet Apportion 

2805008300 - Miscellaneous Area Sources; Agriculture Production – Livestock; Poultry production - layers with wet manure management systems; Land appli

30202105 Industrial Processes Food and Agriculture Eggs and Poultry Production Manure Handling: Wet Apportion 30202106 Industrial Processes Food and Agriculture Eggs and Poultry Production Manure Handling: Wet Apportion 

2805039100 - Miscellaneous Area Sources; Agriculture Production – Livestock; Swine production - operations with lagoons (unspecified animal age); Co

30202000 Industrial Processes Food and Agriculture Beef Cattle Feedlots Swine Feedlots Apportion 

2805039200 - Miscellaneous Area Sources; Agriculture Production – Livestock; Swine production - operations with lagoons (unspecified animal age); Manure ha

30202000 Industrial Processes Food and Agriculture Beef Cattle Feedlots Swine Feedlots Apportion 

2805039300 - Miscellaneous Area Sources; Agriculture Production – Livestock; Swine production – deep-pit house operations (unspecified animal age); Land ap

30202000 Industrial Processes Food and Agriculture Beef Cattle Feedlots Swine Feedlots Apportion 

2805047100 – Miscellaneous Area Sources; Agriculture Production – Livestock; Swine Production – deep-pit operations (unspecified animal age); Con

30202000 Industrial Processes Food and Agriculture Beef Cattle Feedlots Swine Feedlots Apportion 

2805047300 – Miscellaneous Area Sources; Agriculture Production – Livestock; Swine Production – deep-pit operations (unspecified animal age); Land applic

30202000 Industrial Processes Food and Agriculture Beef Cattle Feedlots Swine Feedlots Apportion 

2805053100 – Miscellaneous Area Sources; Agriculture Production – Livestock; Swine Production – outdoor operations (unspecified animal age); Con

30202000 Industrial Processes Food and Agriculture Beef Cattle Feedlots Swine Feedlots Apportion 

Note: no emissions were identified in the above SCCs within version 1.10a of the SEMAP point source inventory.